Glen Beach is south of the harbour at Saundersfoot. Access is from the harbour down a wheelchair friendly ramp, or alternatively from the bottom of The Glen (the first turning on the left after St Brides hill out of Saundersfoot). There is roadside parking for about 10 cars here, with alternative parking at Saundersfoot. Dogs are allowed at all times. Toilets and drinking water are available at Saundersfoot harbour.
The beach is mostly sand, with rocks, small streams and rockpools and backed by cliffs of mudstone and sandstone. Opposite the harbour is a classic example of an anticline known as Ladies Cave. Beyond this are three small sandy coves backed by shingle and high wooded cliffs. The second along has a small mine adit at the back and the third (Swallow Tree) gives access to the coast path. As these beaches face east, they become shaded late in the afternoon. The coast from here to Monkstone is very sheltered and perfect for swimming and snorkelling at high tide. At low tide it is possible to walk to Monkstone Point and Monkstone beach.