Located on Lopez Island, Spencer Spit State Park is a great option for those that want to car camp on the San Juan Islands. There are many drive up tent sites, some walk-in beach sites for those arriving on the Cascadia Marine Trail. The campsites are wooded with plenty of shade. This is a popular campground, so make sure you reserve the campsite in advance.
The park is also a great place for day-use with a picnic shelter that can be reserved. There is are a lot of marine activities to do at the park including crabbing, fishing, kayaking /canoeing, or beaching exploring. The park has kayak tours and rentals. This a great place to stay if you are exploring the island on your bike.