Ogof Gwylan

Sea caves don't get much more dramatic than this one carved into the limestone cliffs near Llandudno. Ogof Gwylan - Welsh for Seagull Cave - sits beneath the towering headland, accessible only at low tide when the sea retreats enough to reveal its gaping mouth.

Experienced coastal walkers and families with older children will find the scramble down to the cave entrance proper exciting, though it's definitely not pushchair territory. The cave itself stretches back into the cliff face, creating an atmospheric spot where the sound of waves echoes off wet rock walls. Bring a decent torch if you plan to venture beyond the entrance.

Timing your visit is everything here. Check tide times religiously - high tide makes the cave completely inaccessible and potentially dangerous. Early morning visits often reward you with better light streaming into the cave mouth, plus you'll likely have the place to yourself.

For those staying at nearby parks like Hafan y Gogarth or Aberconwy Resort, this makes a brilliant half-day adventure combined with exploring Llandudno's seafront. Allow two to three hours including the coastal walk, and wear proper walking boots with good grip. The rocks can be slippery, especially after rain or when spray from the waves coats everything in a fine mist.