The address is
332 Treasure Island Drive, Aptos, CA 95003
The best way to get there is to use Waze or Google Maps on your phone - just type in the address and follow the directions.
If you are not using your phone for directions and are going old school you are probably approaching from the Bay Area. If so, Take Highway 17 to Santa Cruz, as you enter Santa Cruz take Highway 1 South toward Monterey/Carmel. Approximately 8 miles take the Rio Del Mar exit, turn right and head to the beach. Then pick up the attached maps.
If you are coming from the South, work your way to Highway 1 toward Santa Cruz. About 8 miles before Santa Cruz exit Highway 1 at the Rio Del Mar exit. Then pick up the attached maps and you will be at The Cabin before you know it.