Avalon has more than a mile of increasingly rare undeveloped beachfront. The park provides habitat for many species of wildlife. Threatened and endangered sea turtles such as the loggerhead, Atlantic green and leatherback nest on the beach during the spring and summer. Dune crossovers protect the fragile dune ecosystem.
The park is ideal for swimmers, snorkelers, fishermen and sunbathers for beach recreation. Swimmers and snorkelers are advised to be cautious of underwater obstacles left behind by amphibious warfare exercises during World War II. Visitors can enjoy a meal at sheltered picnic tables overlooking the beach.