Guam - Ypao Beach and Matapang Beach are off limits to the public. The Department of Parks and Recreation has closed the beaches after the discovery of Man-O-War jelly fish in the Tumon Bay areas. The jelly fish pack a painful sting that should be treated by flushing the affected area with salt water or vinegar. You should also seek immediate medical attention. Parks and Recs advises the community to avoid swimming at Ypao Beach and Matapang Beach until the all clear is given.