diff --git a/app.py b/app.py
index a6d82cb..e20b150 100644
--- a/app.py
+++ b/app.py
@@ -19,7 +19,21 @@ def render_page(site):
     return ("<!doctype html><html lang=en><meta charset=utf-8>"
             "<meta name=viewport content='width=device-width,initial-scale=1'>"
             f"<title>{escape(site['title'])}</title><h1>{escape(site['title'])}</h1>"
-            f"<p>{escape(site['welcome'])}</p><p>Fictional local evaluation fixture.</p></html>")
+            f"<p>{escape(site['welcome'])}</p><p>Fictional local evaluation fixture.</p>"
+            "<p><a href='/about'>About the walking club</a></p></html>")
+
+
+def render_about(site):
+    return ("<!doctype html><html lang=en><meta charset=utf-8>"
+            "<meta name=viewport content='width=device-width,initial-scale=1'>"
+            f"<title>About | {escape(site['title'])}</title>"
+            "<main><h1>About the walking club</h1>"
+            "<p>Fictional Field Notes Walking Club is an imaginary group for people who enjoy "
+            "gentle walks, noticing local plants and sharing notes along the way.</p>"
+            "<p>In this fictional club, walkers meet at the imaginary Willow Park gate "
+            "on Saturday mornings and choose a short route together.</p>"
+            "<p>This is fictional walking-club information for a local evaluation.</p>"
+            "<p><a href='/'>Return home</a></p></main></html>")
 
 
 class Page(BaseHTTPRequestHandler):
@@ -29,6 +43,8 @@ class Page(BaseHTTPRequestHandler):
             body, content_type, status = b'{"status":"ready"}', "application/json", 200
         elif path == "/":
             body, content_type, status = render_page(load_site()).encode(), "text/html; charset=utf-8", 200
+        elif path == "/about":
+            body, content_type, status = render_about(load_site()).encode(), "text/html; charset=utf-8", 200
         else:
             body, content_type, status = b"Page not found", "text/plain", 404
         self.send_response(status)
diff --git a/test_app.py b/test_app.py
index a42d297..4776ced 100644
--- a/test_app.py
+++ b/test_app.py
@@ -1,4 +1,5 @@
 """Independent local HTTP assertions; these are not fresh-agent attempts."""
+from html.parser import HTMLParser
 from http.server import ThreadingHTTPServer
 import json
 from pathlib import Path
@@ -9,6 +10,17 @@ from urllib.request import urlopen
 from app import Page, load_site, render_page
 
 
+class Links(HTMLParser):
+    def __init__(self, html):
+        super().__init__()
+        self.targets = []
+        self.feed(html)
+
+    def handle_starttag(self, tag, attrs):
+        if tag == "a":
+            self.targets.extend(value for name, value in attrs if name == "href")
+
+
 class SiteTests(unittest.TestCase):
     @classmethod
     def setUpClass(cls):
@@ -38,6 +50,31 @@ class SiteTests(unittest.TestCase):
         with self.assertRaises(HTTPError) as caught:
             urlopen(self.base + "/missing", timeout=3)
         self.assertEqual(caught.exception.code, 404)
+        caught.exception.close()
+
+    def test_about_journey_returns_to_customised_home(self):
+        with urlopen(self.base + "/", timeout=3) as response:
+            home = response.read().decode()
+        self.assertIn("/about", Links(home).targets)
+        with urlopen(self.base + "/about", timeout=3) as response:
+            self.assertEqual(response.status, 200)
+            self.assertEqual(response.headers.get_content_type(), "text/html")
+            about = response.read().decode()
+        self.assertIn("<h1>About the walking club</h1>", about)
+        self.assertIn("Fictional Field Notes Walking Club", about)
+        self.assertIn("fictional", about.lower())
+        self.assertIn("/", Links(about).targets)
+        with urlopen(self.base + "/", timeout=3) as response:
+            returned_home = response.read().decode()
+        self.assertEqual(returned_home, home)
+        self.assertIn(load_site()["welcome"], returned_home)
+
+    def test_malformed_about_route_stays_not_found(self):
+        with self.assertRaises(HTTPError) as caught:
+            urlopen(self.base + "/about%00", timeout=3)
+        self.assertEqual(caught.exception.code, 404)
+        self.assertEqual(caught.exception.read(), b"Page not found")
+        caught.exception.close()
 
     def test_user_text_stays_text(self):
         self.assertNotIn("<script>", render_page({"title": "<script>", "welcome": "& Fiction"}))