
Mercers Lake is an inland dive site near Redhill in Surrey, a former quarry lake popular with dive clubs across London and the southeast. The sheltered freshwater environment provides a reliable year-round training venue with easy access and gentle conditions suitable for beginners. Submerged platforms, boats, and training aids have been placed at various depths to create interest and practice opportunities. Pike, perch, and carp inhabit the lake and are regularly spotted. Mercers Lake fills an important gap for the large diving community in southern England, offering a convenient midweek training option without the long drive to quarry sites in Somerset or Kent. The site operates as a managed dive facility with basic amenities.
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Absolutely stunning dive site. The visibility was exceptional and we spotted several species we had never seen before. Will definitely come back.
Great spot for advanced divers. Currents can be tricky but the marine life makes it worth it.
One of the best dive sites in the region. Highly recommended.
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