Next to the Swiss Park event space are some walking trails in a tide flats area with an adjacent salt marsh. The area is popular with construction guys and military guys jogging for a little service and tends to be busiest early evening 5-7 PM. The cruisiest spots is reported as being in the vegetation on the west side of the trail (bay side).
Head south on I-5 off at Main Street. At the stop sign turn right down the lane and park wherever you like. Alternatively go via Saturn and Palm to get on the trail walking north from behind the Home Depot.