This post code - TQ9 6RD - will get you to the River Shack where there is parking.
Stoke Gabriel village is about 15 minutes by car off the Paignton – Totnes road (A385). There are public toilets in the village centre about 50m past the Post Office. There are 100 parking spaces on Stoke Gabriel Quay (£3.50 for all day) near the River Shack Café (toilet facilities for customers).
Your skipper/guide will come and find you on the Quay at your expected time, or you will find them setting up on the beach on the north shore of the creek.