Tenby — Dinbych-y-Pysgod, "the little fortress of the fish" — is about as pretty as a seaside town gets: a huddle of pastel Georgian houses tumbling down to a golden harbour, all wrapped inside 13th-century town walls, with three glorious beaches at its feet. Squeeze in a boat trip to a monks' island and a fort that once kept monkeys, and you have a walking tour that packs a remarkable amount into one small walled headland.
This is a self-guided walk around the old town and its harbour — no ticket, no timetable. It's a compact mile or so on foot, with a few gentle hills and steps, and it suits the whole family (the beaches are never far away for a bucket-and-spade break). Follow the stops in order and you'll loop back to where you started, ideally with an ice cream from the harbour.
The walking tour, stop by stop
1. The Five Arches & the town walls — start here
Begin at the Five Arches, the town's grand medieval gateway. The walls themselves are among the best-preserved in Britain (Grade I listed), rebuilt in formidable style by William de Valence, Earl of Pembroke, after 1264; the original 13th-century gate here was later reinforced with a 14th-century barbican tower — the clustered arches that give the gate its name. Walk a stretch of the parapet and you're following the same line that once kept the town safe from raiders.
2. Tudor Merchant's House
Duck into the narrow streets to find the Tudor Merchant's House, built around 1500 and now cared for by the National Trust. In its day Tenby was a busy port trading with France and beyond — wine, salt and linen came ashore here — and this snug, three-storey home shows exactly how a well-to-do merchant family lived, right down to the recreated Tudor kitchen and the faint remains of early wall paintings.
3. St Mary's Church
Climb to the highest point within the walls and you'll find St Mary's, one of the largest and finest parish churches in Wales and proof of just how rich medieval Tenby became on the back of the sea. It's more than 800 years old, with a soaring spire, a beautiful wagon roof studded with carved bosses, and memorials to the town's merchants and mayors. Step inside for a cool, quiet pause halfway round.
4. The Harbour
Now down to the star of every Tenby postcard: the harbour, ringed by a crescent of tall Georgian and Regency houses painted in sherbet colours, with fishing boats and pleasure craft drying out on the sand at low tide. From here, in season, little boats putter across to Caldey Island — home to a community of Cistercian monks whose abbey dates from 1906, on an island that's been lived on since the Stone Age and monastic since the 6th century.
5. Castle Hill & Tenby Museum
Head up the grassy headland of Castle Hill, crowned by the scant ruins of Tenby's Norman castle and the Prince Albert memorial. Up here too is the Tenby Museum & Art Gallery — one of the oldest independent museums in Wales, founded in 1878 — packed with local history, geology and art. Best of all is the view: the whole sweep of the bay, the harbour below, and the little fortified island just offshore.
6. St Catherine's Island & Fort
From the headland and Castle Beach you can't miss St Catherine's Island, a tidal islet you can walk out to at low tide, topped by a brooding Victorian fort. It was built in the 1860s as one of "Palmerston's Follies" — coastal forts thrown up against a French invasion that never came — and later had a wonderfully odd second life as a private zoo in the 1960s and 70s, complete with monkeys (who occasionally escaped to pinch snacks from sunbathers) and, believe it or not, an alligator.
7. The beaches
Round off the loop on the sand. Tenby has three beaches to choose from: the sheltered North Beach by the harbour, the little Castle Beach beneath the headland (regularly voted one of Britain's best), and the vast golden sweep of South Beach stretching away towards Giltar Point. Whichever you pick, it's the perfect finish — before you wander back up through the pastel streets to where you began.
Map of the spots in this guide
The route and its stops, mapped — follow the red line and tap a pin for the name.
Make a day of it
Once you've closed the loop, there's easily a day here. Take the boat to Caldey for the abbey, the lighthouse and the monks' famous perfumes and chocolate; walk a stretch of the Pembrokeshire Coast Path towards Saundersfoot; or simply settle on the sand. Tenby is small, walkable and endlessly photogenic — a proper Welsh seaside treasure.
Staying the night? Tenby makes a wonderful base for the Pembrokeshire coast and its beaches. We list welcoming guest houses, seafront hotels, B&Bs and self-catering right here in town — many bookable direct with the owner.
- How long is the Tenby walking tour?
- The old-town loop is about a mile on foot, so allow around two hours at a gentle pace — more if you climb Castle Hill slowly, visit the museum, or catch a boat to Caldey Island.
- Is it suitable for children and pushchairs?
- Yes — Tenby is compact and children love the harbour, the beaches and the story of the fort's escaped monkeys. There are some slopes and steps around the harbour and Castle Hill, so a sling can be easier than a pushchair for those parts.
- Can you walk out to St Catherine's Island?
- Yes, at low tide you can cross the sand to the island from Castle Beach, and the Victorian fort is open to visitors at certain times. Always check the tide times before you set off, as the causeway covers at high water.
- How do I get to Caldey Island?
- Small passenger boats run from Tenby harbour to Caldey Island in season (spring to autumn, weather permitting). The island is home to a working Cistercian monastery, with an abbey, a lighthouse and a shop selling the monks' perfume and chocolate.
- Can I get to Tenby by train?
- Yes. Tenby has its own railway station a few minutes' walk from the town walls, on the line through Pembrokeshire, so you can leave the car behind.