Capitola is an adorable town next to the beach. We suggest the Marriot Fairfield Inn & Suites. Call them at (831) 427-2900. Also, across the street is an affordable Best Western Plus. If you want to do something a little more fancy with suites by the beach (but 20 minutes from Capitola), check out Seascape Beach Resort.
You can also look at AirBNB options along the shuttle route for easy wedding pick-up (zoom in to see the route).