A warmup game that involves role playing and running!
Turn all fish into seaweed!
2 or 3 players are the 'sharks,' the rest are the 'fish.' Mark off a playing area to be the 'tank.' Fish must stay in the tank. Sharks 'eat' (tag) fish, and fish become 'seaweed' (stand in one spot) that are able to help out the sharks by tagging other fish and turning them into seaweed as well!
Leaders are sharks.
Time how long it takes for sharks to catch fish, different locomotion.