Adventure-seeking adults 15 and older can explore the shady islands and side channels of James River Park, Saturday, July 21, beginning at 10 a.m. at the Reedy Creek Visitor Center. Participants must be able to swim. Lifejackets are provided. Wear water shoes. Call 646-8911 or 646-6446 for details and reservations.

The children’s tour, for ages 14 and under, is Saturday, July 28, at 10 a.m. Younger children must be accompanied by an adult and be able to swim. Lifejackets are provided, but water shoes are recommended. Meet at the Reedy Creek Visitor Center. For more information and reservations, call 646-8911 or 646-6446.