Bring a towel for picnicking on the lawn and a shovel and bucket for digging in the sand.
My son and I had a great time just mellowing out after driving all over. He was ready for a fun playground and saw it outside the RV window. In fact we had to turn around because he was so excited by the playground and splash park.
Pack shorts for frolicking little ones in the splash park with its own little mini lighthouse.
Don't eat out, instead pick up food at one of the big grocery stores and take it to the park. You can lay in the sand and look out at the Vancouver island ferries.
I thought this area was just beautiful and was a great place to stay for a couple days of relaxing and playing.