My mom and I are driving the Olympic Peninsula. We will be driving down from BC in two cars, but are doing the drive around the peninsula together in one car. We're bringing two cars because after the trip she is heading north (to come home) and I am heading south (to visit friends in Oregon). So, my question is: where can I park my car for 4 days? Ideally, I'd like somewhere in Seattle or Olympia that is safe and cost effective. I've seen the prices to park at SeaTac, but that seems both out-of-the-way and expensive.