SATURDAY, AUG. 28 Ride the Spamtown Belle, East Side Lake, Austin. Fridays 5:30 p.m. to 8:30 p.m.; Saturdays 1 p.m. to 5 p.m.; Sundays 1 p.m. to 5 p.m. Through September. Adults $2, children $1. SUNDAY, AUG. 29 Ride the Spamtown