The forecast is looking good for Sunday, so I doubt weather will be an issue. Regardless I'll still be at the meet up point and will be in touch with the boat operators via cellphone if necessary.
Golf carts are $20 per cart (for 1hr 15mins), each cart holds 4 people and one drivers id is required per cart. However, with such a large group it may prove difficult to rent enough carts on this particular cruise, so we may have to give this a miss on the day depending on numbers who want to do it and cart availability.