From WikiGTA - The Complete Grand Theft Auto Walkthrough
Bayside is the nautical village in Tierra Robada, at the end of the Gant Bridge. Bayside contains, in proportion to the village, a large marina including the Boat School. There is also a helipad with a Maverick or a Seasparrow in Bayside. Opposite the Bayside Marina, on top of the high cliff, once stood a lighthouse, the only remains of the lighthouse is it's foundation.
A vibrator can be found behind a bin.