Multi-use trail that runs along the perimeter of the airport. The trail is about a mile and a half long but if you include a walk along the channel up to the marina it will roughly double in length. At the South end of the trail there are two dog parks. One with a beach and one without. There is also a small beach for humans at SeaPlane Basin Park. This is a great place for picnics or watching the sunset. If you plan on going in the water, you can check its most recent testing results here. There is plenty of parking on the South end of the trail or near Marjorie Park Marina. If parking on the North end near the marina you will have to walk South along the water to join up with the trail.