Although these suppliers don't match your search for Riverside venues in Isle of Wight, they are within approximately 40 miles and could still be of interest.
Venues, Riverside venues, Hayling Island, Hampshire
Approached via a unique causeway entrance, Hayling Island Sailing Club sits on a peninsula of golden sand at the entrance to Chichester Harbour. The clubhouse, dining room, bars and balconies offer unrivalled views over the harbour and South Downs. Along with its very own private sandy beach, the club offers a memorable backdrop for the most important day of your life. (Riverside venues in Isle of Wight)