Will be arriving on a Sunday afternoon and need to have transportation to the Wyndamm in Oceanside. Do not really want to rent a car as we just want to hang around the local area walking distance attractions. What are some low cost options? I looked on the commuter trolley from San Diego but said service wasn't available on Sunday? Will be traveling with two 19 year olds so walking some blocks is not a problem, and want to show them how to get around without a car!LOL.