One person is selected to be the octopus. The octopus wanders the ocean while the rest of the players are swimmers standing on the shore behind one of the shore lines. Anyone that is caught by the octopus must freeze in place. In the next round of play, they become tentacles. The tentacles are capable of tagging swimmers.
Play continues in rounds until everyone is caught.
Then a new octopus is chosen. The children must run in an area set by boundaries without being touched by the Blob. If a child is touched by the Blob, he or she must join the line of children by holding hands. Play continues until there are two children that have not joined the line. These two children are the beginning of the new Blob.