This game has so many variations to it that you could play it 3 times in one term and it would feel different every time.
The basic idea is to get your youth into teams and then have them take in turns at linking arms and getting into one tight unit in the middle of some kind of epic arena that you have built while the other team tries to pull them apart.
Time how long it takes each team to pull apart the other team and the team that can stay linked for the longest wins.
Note: It’s best to do a boy’s rounds and girls rounds as there would be too much contact for this to be appropriate if played with both genders at the same time.