Many offer sports facilities including basketball, tennis, and volleyball courts, as well as picnic areas.Hours: 10am-6pm at Hewlett Point Park; 7am-5pm for ocean beaches; lifeguards on duty 10am-6pm weekends and holidays until June 17 and daily from June 18 through Sept. 3;11am-7pm pool hours.Cost: Hewlett Point Park: $5; $2.50 seniors, veterans, and children ages 5-9.