Porthleven has exploited its location and powerful swells to become one of Britain's best-known surfing spots, described as "Cornwall's best reef break". Waves often exceeding break on a shallow reef that was shaped by blasting the harbour. Kayaking is also popular. RNLI lifeguards patrol the beach in the holiday season. The beach is separated from the harbour by a granite pier in front of the Porthleven Institute and clock tower. When the tide is out it is possible to walk about three miles east along Porthleven beach. There is also a coastal path with views of the beach below.