Horseshoe Crabs By the Full and New Moons

horseshoe crabs spawning   (though I object to "invade" as the description)

Horseshoe crabs are commonly found along New Jersey's Delaware Bay beaches, particularly in May and June when they come ashore to spawn. The most significant concentration of spawning horseshoe crabs occurs in the middle reaches of the Delaware Bay. Beaches in Cumberland and Cape May counties are known for high horseshoe crab activity during this time. 

May 12 is the Full Moon, and the 26th is the New Moon and next monthJune 11 is the Full Moon date this year, with the New Moon on the 25th.

New Jersey is known for its sandy beaches, and horseshoe crabs can be found spawning all across the state. The most activity by far is found on the Delaware Bay coastline, in Cumberland and Cape May counties. (A map of spawning beaches) 

reTURN the Favor is a collaborative effort that enables organized volunteers to save horseshoe crabs stranded on New Jersey’s seasonally closed and open beaches. Since 2013, reTURN the Favor volunteers have been rescuing horseshoe crabs along New Jersey’s Delaware Bay beaches. The program has grown significantly over the past decade, substantially contributing to horseshoe crab conservation.