diff --git a/app/routes/sessions.js b/app/routes/sessions.js
index 8024020..c872c7f 100644
--- a/app/routes/sessions.js
+++ b/app/routes/sessions.js
@@ -26,6 +26,43 @@ function sessions (router, shared) {
     return `/sites/${siteId}/session/${availId}/${date}/breaks`
   }
 
+  function getSessionEditBaseHref (siteId, availId, date) {
+    return `/sites/${siteId}/session/${availId}/${date}/edit`
+  }
+
+  function getSessionEditCheckHref (siteId, availId, date) {
+    return `${getSessionEditBaseHref(siteId, availId, date)}/check`
+  }
+
+  function getSessionEditPathHref (siteId, availId, date, editPath) {
+    const base = getSessionEditBaseHref(siteId, availId, date)
+    if (editPath === 'booking-length') return `${base}/booking-length`
+    if (editPath === 'services') return `${base}/services`
+    return `${base}/times`
+  }
+
+  function renderSessionEditCheckPage (req, res, avail, draft) {
+    const serviceNames = (draft.services || [])
+      .map(id => (req.data.services[id] ? req.data.services[id].name : id))
+    const editLabel = draft.editPath === 'booking-length'
+      ? 'booking length'
+      : (draft.editPath === 'services' ? 'services' : 'session times')
+
+    res.render('sites/session-edit-check', {
+      site: req.site,
+      sessionLabel: avail.label,
+      date: req.params.date,
+      editLabel,
+      draft,
+      serviceNames,
+      formAction: getSessionEditCheckHref(req.site.id, avail.id, req.params.date),
+      backHref: getSessionEditPathHref(req.site.id, avail.id, req.params.date, draft.editPath),
+      changeHref: getSessionEditPathHref(req.site.id, avail.id, req.params.date, draft.editPath),
+      affectedCount: (draft.affectedBookingIds || []).length,
+      bookingsHref: `${getSessionEditInfoHref(req.site.id, avail.id, req.params.date)}/warning`
+    })
+  }
+
   function getSessionBreakBackHref (siteId, availId, date, draft) {
     const base = getSessionBreaksBaseHref(siteId, availId, date)
     if (draft.breakAction === 'change' && Number.isInteger(draft.breakIndex)) return `${base}/${draft.breakIndex}/change`
@@ -110,16 +147,7 @@ function sessions (router, shared) {
   })
 
   router.post('/sites/:siteId/session/:availId/:date', (req, res) => {
-    const avail = req.site.availability.find(a => a.id === req.params.availId)
-    if (!avail) return res.status(404).send('Availability not found')
-    const draft = ensureSessionEditDraft(req, avail, req.params.date)
-
-    if ((draft.affectedBookingIds || []).length > 0) {
-      return res.redirect(`${getSessionEditInfoHref(req.site.id, avail.id, req.params.date)}/warning`)
-    }
-
-    applySessionEditDraft(req, avail, draft)
-    res.redirect(`${getSessionEditInfoHref(req.site.id, avail.id, req.params.date)}/success`)
+    res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
   })
 
   router.get('/sites/:siteId/session/:availId/:date/remove', (req, res) => {
@@ -469,6 +497,7 @@ function sessions (router, shared) {
     const draft = req.session.data.sessionEditDraft
     if (!draft) return res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
     const base = `/sites/${req.site.id}/session/${req.params.availId}/${req.params.date}/edit`
+    draft.editPath = 'times'
 
     res.render('sites/availability-shared-times', {
       site: req.site,
@@ -501,14 +530,20 @@ function sessions (router, shared) {
     }
 
     draft.timeBlocks = parsedBlocks
+    draft.editPath = 'times'
     updateSessionEditDraftImpacts(req.site, req.params.availId, req.params.date, draft)
-    res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
+    if ((draft.affectedBookingIds || []).length > 0) {
+      return res.redirect(`${getSessionEditInfoHref(req.site.id, req.params.availId, req.params.date)}/warning`)
+    }
+
+    res.redirect(getSessionEditCheckHref(req.site.id, req.params.availId, req.params.date))
   })
 
   router.get('/sites/:siteId/session/:availId/:date/edit/booking-length', (req, res) => {
     const draft = req.session.data.sessionEditDraft
     if (!draft) return res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
     const base = `/sites/${req.site.id}/session/${req.params.availId}/${req.params.date}/edit`
+    draft.editPath = 'booking-length'
 
     res.render('sites/availability-shared-booking-length', {
       site: req.site,
@@ -538,14 +573,20 @@ function sessions (router, shared) {
     }
 
     draft.slotLength = value
+    draft.editPath = 'booking-length'
     updateSessionEditDraftImpacts(req.site, req.params.availId, req.params.date, draft)
-    res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
+    if ((draft.affectedBookingIds || []).length > 0) {
+      return res.redirect(`${getSessionEditInfoHref(req.site.id, req.params.availId, req.params.date)}/warning`)
+    }
+
+    res.redirect(getSessionEditCheckHref(req.site.id, req.params.availId, req.params.date))
   })
 
   router.get('/sites/:siteId/session/:availId/:date/edit/services', (req, res) => {
     const draft = req.session.data.sessionEditDraft
     if (!draft) return res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
     const base = `/sites/${req.site.id}/session/${req.params.availId}/${req.params.date}/edit`
+    draft.editPath = 'services'
 
     res.render('sites/availability-shared-services', {
       site: req.site,
@@ -579,8 +620,32 @@ function sessions (router, shared) {
     }
 
     draft.services = services
+    draft.editPath = 'services'
     updateSessionEditDraftImpacts(req.site, req.params.availId, req.params.date, draft)
-    res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
+    if ((draft.affectedBookingIds || []).length > 0) {
+      return res.redirect(`${getSessionEditInfoHref(req.site.id, req.params.availId, req.params.date)}/warning`)
+    }
+
+    res.redirect(getSessionEditCheckHref(req.site.id, req.params.availId, req.params.date))
+  })
+
+  router.get('/sites/:siteId/session/:availId/:date/edit/check', (req, res) => {
+    const avail = req.site.availability.find(a => a.id === req.params.availId)
+    const draft = req.session.data.sessionEditDraft
+    if (!avail) return res.status(404).send('Availability not found')
+    if (!draft || !draft.editPath) return res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
+
+    renderSessionEditCheckPage(req, res, avail, draft)
+  })
+
+  router.post('/sites/:siteId/session/:availId/:date/edit/check', (req, res) => {
+    const avail = req.site.availability.find(a => a.id === req.params.availId)
+    const draft = req.session.data.sessionEditDraft
+    if (!avail) return res.status(404).send('Availability not found')
+    if (!draft || !draft.editPath) return res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
+
+    applySessionEditDraft(req, avail, draft)
+    res.redirect(`${getSessionEditInfoHref(req.site.id, avail.id, req.params.date)}/success`)
   })
 
   router.get('/sites/:siteId/session/:availId/:date/edit/warning', (req, res) => {
@@ -608,7 +673,9 @@ function sessions (router, shared) {
       affectedCount: affected.length,
       affectedBookingRows,
       formAction: `${base}/warning`,
-      backHref: getSessionEditSummaryHref(site.id, req.params.availId, date)
+      backHref: draft.editPath
+        ? getSessionEditPathHref(site.id, req.params.availId, date, draft.editPath)
+        : getSessionEditSummaryHref(site.id, req.params.availId, date)
     })
   })
 
@@ -619,8 +686,7 @@ function sessions (router, shared) {
     if (!draft) return res.redirect(getSessionEditSummaryHref(req.site.id, req.params.availId, req.params.date))
 
     draft.bookingsChoice = req.body.bookingsChoice || 'keep'
-    applySessionEditDraft(req, avail, draft)
-    res.redirect(`${getSessionEditInfoHref(req.site.id, avail.id, req.params.date)}/success`)
+    res.redirect(getSessionEditCheckHref(req.site.id, avail.id, req.params.date))
   })
 
   router.get('/sites/:siteId/session/:availId/:date/edit/success', (req, res) => {
diff --git a/app/routes/shared/session-edit.js b/app/routes/shared/session-edit.js
index 5d16398..b929a91 100644
--- a/app/routes/shared/session-edit.js
+++ b/app/routes/shared/session-edit.js
@@ -123,6 +123,7 @@ function buildSessionEditDraft (avail, date) {
     originalBreakTimes: avail.breakTimes || [],
     affectedBookingIds: [],
     unaffectedBookingIds: [],
+    editPath: null,
     changeDescription: 'session times',
     bookingsChoice: 'keep'
   }
diff --git a/app/views/sites/session-edit-check.html b/app/views/sites/session-edit-check.html
new file mode 100644
index 0000000..4244303
--- /dev/null
+++ b/app/views/sites/session-edit-check.html
@@ -0,0 +1,112 @@
+{% extends 'layout.html' %}
+
+{% set pageName = "Check your answers — " + site.name %}
+
+{% block beforeContent %}
+  {{ backLink({ href: backHref }) }}
+{% endblock %}
+
+{% block content %}
+<div class="nhsuk-grid-row">
+  <div class="nhsuk-grid-column-two-thirds">
+
+    <h1 class="nhsuk-heading-xl">Check your answers</h1>
+
+    <p class="nhsuk-body">Review the changes to {{ editLabel }} before saving.</p>
+
+    {% set summaryRows = [
+      {
+        key: { text: "Session" },
+        value: { text: sessionLabel }
+      },
+      {
+        key: { text: "Date" },
+        value: { text: date | formatDateLong }
+      }
+    ] %}
+
+    {% if draft.editPath === 'booking-length' %}
+      {% set summaryRows = (summaryRows.push({
+        key: { text: "Booking length" },
+        value: { text: draft.slotLength + " minutes" },
+        actions: {
+          items: [{
+            href: changeHref,
+            text: "Change",
+            visuallyHiddenText: "booking length"
+          }]
+        }
+      }), summaryRows) %}
+    {% elif draft.editPath === 'services' %}
+      {% set summaryRows = (summaryRows.push({
+        key: { text: "Services" },
+        value: { text: serviceNames | join(", ") },
+        actions: {
+          items: [{
+            href: changeHref,
+            text: "Change",
+            visuallyHiddenText: "services"
+          }]
+        }
+      }), summaryRows) %}
+    {% else %}
+      {% set blocksList %}
+        <ul class="nhsuk-list nhsuk-u-margin-bottom-0">
+          {% for blk in draft.timeBlocks %}
+            <li>{{ blk.start | formatTime }} to {{ blk.end | formatTime }}</li>
+          {% endfor %}
+        </ul>
+      {% endset %}
+      {% set summaryRows = (summaryRows.push({
+        key: { text: "Time periods" },
+        value: { html: blocksList },
+        actions: {
+          items: [{
+            href: changeHref,
+            text: "Change",
+            visuallyHiddenText: "session times"
+          }]
+        }
+      }), summaryRows) %}
+    {% endif %}
+
+    {% if affectedCount > 0 %}
+      {% set summaryRows = (summaryRows.push({
+        key: { text: "Bookings affected" },
+        value: { text: affectedCount }
+      }), summaryRows) %}
+      {% set summaryRows = (summaryRows.push({
+        key: { text: "What do you want to do with bookings" },
+        value: { text: "Keep bookings" if draft.bookingsChoice === "keep" else ("Cancel " + affectedCount + " " + ("booking" if affectedCount === 1 else "bookings")) },
+        actions: {
+          items: [{
+            href: bookingsHref,
+            text: "Change",
+            visuallyHiddenText: "what to do with bookings"
+          }]
+        }
+      }), summaryRows) %}
+    {% endif %}
+
+    {{ summaryList({ rows: summaryRows }) }}
+
+    {% if affectedCount > 0 and draft.bookingsChoice === "cancel" %}
+      {% call warningCallout({ heading: "You are about to remove " + affectedCount + " " + ("booking" if affectedCount === 1 else "bookings") }) %}
+        <p>This cannot be undone.</p>
+      {% endcall %}
+
+      <form method="post" action="{{ formAction }}">
+        {{ button({
+          text: "Change session and remove " + affectedCount + " " + ("booking" if affectedCount === 1 else "bookings"),
+          classes: "nhsuk-button--warning"
+        }) }}
+      </form>
+    {% else %}
+      <form method="post" action="{{ formAction }}">
+        {{ button({ text: "Change session" }) }}
+      </form>
+    {% endif %}
+
+  </div>
+</div>
+{% endblock %}
diff --git a/app/views/sites/session-options.html b/app/views/sites/session-options.html
index ebbad91..3d50489 100644
--- a/app/views/sites/session-options.html
+++ b/app/views/sites/session-options.html
@@ -93,11 +93,6 @@ <h2 class="app-summary-card__title">Services</h2>
         ] }) }}
       </div>
     </div>
-
-    <form method="post" action="{{ formAction }}">
-      {{ button({ text: "Save changes" }) }}
-    </form>
-
   </div>
 </div>
 {% endblock %}