Best Places to Swim on the North Shore of Oahu.  The best place to swim on the North Shore is during the summer at Waimea Bay.  If you decide that you want to swim at another beach on the North Shore, choose one that has a lifeguard on duty.  When swimming on the North Shore always check in with the lifeguard on duty.  Following is a list of beaches that have lifeguards on the North Shore; Haleiwa, Laniakea, Chuns Reef, Waimea Bay, Ehukai and Sunset beaches.  Please also get a surfing lesson or surf guide if you are new to surfing or even just new to surfing on the North Shore.