$6 (per private vehicle with two to eight people); $4 (per single-occupancy vehicle); $2 (per person arriving by bicycle or on foot). River cruise $8; $5 (ages 3-12).
Park daily 8-dusk. River cruises depart daily every hour 9:30-5, during DST; 9:15-4:30, rest of year (weather permitting). Allow 2 hours minimum.