Custom Search     Lake Sammamish     We go to Lake Sammamish every summer. We love boating. The view is spectacular with Mt Rainier and all the hillsides. The water is warm and the beach is huge! We have our company picnic there every year also. Great place to visit! Says Patty Ploegman This lake is a splendid location for waterskiing, jet skiing and wakeboarding. This splendid lake has 8 square miles of surface area.          Map Detailed Map Marinas Marinas on or near Lake Sammamish Weather Local weather forecast