At the far end of the long sandy beach at Tenby there's an area of cool, shady woodland. From the distance and under hot summer sunshine, it looks idyllic. Inviting. A shady promontory on the horizon that curves and blurs down into the sea. 
The best way to get there we think, is by shanks pony. Walk, as slow as you like. Go the full length of the beach. Pass the kids playing and the running dogs who couldn't be happier. The picnicing families, and the lone beach ball, waiting patiently to be collected.  Steer yourself between the scattered seaweeds of the strandline, and the breaking waves of the shore. Just keep going, but don't forget to stop too. There'll be plenty of bits of flotsam and jetsam that need to be checked along the way. And the odd motorboat, to watch, far out on the water, steadily bouncing over the swell. 
As you approach the headland, the trees loom. They are towering things. High, with broad boughs that stretch like green sails overhead. Some will be swaying in the onshore breeze. The beach ends here, so step off the soft sand and up and over the ridge of craggy rocks, to the wooden steps leading to the woodland path. A sandy adventure, that leads steep up, under the trees.
Climb. Feel how the air cools. Becomes laden with sweet musty smells and sappy perfumes. Hear how the sound changes. How the birds are singing. How their sound reflects between the trees, and combines with the washing waves. The sea enters the lowest footings of the forest along natural inlets that are lined with gnarled and exposed roots. 
This place is like a temperate greenhouse. A naturally reverberant space, shaped, regulated, and defined, by the sea and the trees. Such a perfect place, to set down, forget about doing anything, and just listen for a while. 
* Tree canopies can divert over 60% of the sun's heat and so make you cool through a process called evapotranspiration. Source: bbc.co.uk