“There's a framed photograph above the staircase of a dog nobody on staff can identify — not the breed, not the owner, not the decade.”

The 5C bus from Bangor drops you at Castle Square, and from there it's a five-minute walk through the gate in the town wall — the actual 13th-century town wall, not a replica, not a ruin, the functioning municipal boundary. Northgate Street runs uphill from there, narrow enough that delivery vans have to reverse out, and the Black Boy Inn sits about halfway up on the left. You know it by the sign and by the smell: woodsmoke and something slow-cooked, drifting out through a door that doesn't quite close. Two men are standing outside with pints at four in the afternoon, which in Caernarfon is not a statement but a Tuesday.

The town inside the walls is compact enough that you can walk its full perimeter in twenty minutes, but dense enough that you'll stop six times. There's a chip shop on Hole in the Wall Street — yes, that's the real name — and a bookshop on Palace Street that stocks more Welsh-language titles than English ones. Caernarfon Castle dominates the waterfront the way a cathedral dominates a village square, except here the castle came first and the village grew around it like moss. Edward I built it to intimidate. It still works.

The inn that outlasted the castle's purpose

The Black Boy Inn dates to the 1500s, which means it's been serving drinks for longer than most countries have existed. The building knows this. Ceilings are low, doorframes are lower, and the floors have the gentle undulation of something that settled into the earth centuries ago and stopped fighting it. The pub downstairs is the kind of room that makes you instinctively lower your voice — dark wood, a fire that seems permanently lit, horse brasses on the beams that have gone past decorative and into structural. On a weeknight, it's half locals and half walkers still in their boots, and nobody seems to mind either way.

The room upstairs is bigger than you'd expect from the corridor, which involves a turn so sharp you brush both walls with your shoulders. Ours had a heavy wooden bed frame, white linens, and a window that looked out over the rooftops toward the Menai Strait. The radiator clanks when it fires up around six in the evening — a sound that's either annoying or deeply comforting depending on whether you grew up in an old house. The bathroom is modern and clean, the shower pressure is strong, and there's a towel rail that actually gets hot. Someone has left a Welsh cake on a plate by the kettle, wrapped in cellophane. It's gone before I've unpacked.

“The fire in the pub downstairs has its own gravity — you sit near it once and every subsequent trip through the room bends toward it.”

Dinner is in the pub restaurant, and the menu leans Welsh without making a performance of it. The lamb cawl is the thing to order — a slow-cooked broth thick enough to hold a spoon upright, served with bread that someone baked that day. The ale selection rotates, but ask for whatever's from Cwrw Llŷn, the brewery up the peninsula, and you'll get something honest and slightly bitter in the best way. Staff move through the room like people who've worked here long enough to know which table wobbles and which regulars want to talk. One of them tells me the inn's name likely refers to the son of a 7th-century Welsh prince, though she admits there are four competing theories and none of them are provable.

Morning is quieter than you'd think for a building on a main street. The walls are thick — genuinely thick, the kind of thick that comes from being built when insulation meant stone — and the double glazing does the rest. Breakfast is a full Welsh, which is a full English with the addition of laverbread and cockles if you want them. I want them. The laverbread is dark and briny and looks like something you'd scrape off a rock, which is more or less what it is. It's delicious. The dining room has that particular morning-after-rain light that North Wales does better than anywhere, and through the window I can see a woman walking a greyhound past the castle entrance like it's a perfectly normal thing to do at half seven, which here it is.

The honest thing: the Wi-Fi is adequate for checking email and useless for streaming. The corridors creak. The car park is a short walk away on the quay, not at the door, and if you're arriving with heavy bags you'll feel every cobblestone. None of this matters, really, because you're not here for seamless efficiency. You're here because the building is older than the concept of hotel ratings and it still knows how to make a room feel like someone's glad you showed up.

Walking out through the gate

Leaving, you notice the wall differently. Coming in, it was a backdrop — impressive, sure, but scenery. Now it's a boundary you've been living inside, and stepping through the arch onto the quay feels like crossing something. The tide is out and the boats in the harbour are listing on the mud. A man is selling mackerel from a cool box near the Celtic Royal. The mountains of Snowdonia — Eryri, properly — are visible to the southeast, still carrying snow in April. The 5C back to Bangor runs every half hour from the square. If you're heading into the national park instead, the Sherpa'r Wyddfa bus picks up nearby and will take you to the foot of Yr Wyddfa for less than a fiver. Buy your cawl first. You'll want it later.

Rooms at the Black Boy Inn start around 122 USD a night, which buys you a bed inside a medieval town wall, a fire that's already burning when you get back, and a breakfast that includes seaweed you'll actually enjoy.