The Marina Lagoon is a great place to water ski or wakeboard. There are several World and National Class skiers and riders there. There is a slalom course maintained by the San Mateo Water Ski Club (650 341-0707) at the South end and the wakeboarders ride the North end. Day passes are pricey $35 but an annual pass is $400. No inspection for quagga mussels, brackish water so you have to flush and rinse well, but it's not a problem and it's just a minutes from anywhere in the central Bay Area. There are two parks w beaches and playgrounds, BBQs, baseball, etc. The launch ramp is at Parkside Aquatic Park. You can rent kayaks, sailboats and stand up paddle surfboards there. Something for everybody. enjoy read more