Ideas for physical competitive activities for stag do in Manchester

I'm organising a stag for a group of 11 and I'm struggling to find something that is physical and can be turned into a competition. In a past stag, we did an muddy assault course which was a great laugh which would be great to find something like this, but sadly I haven't found anything (or hosting an event at the time we go in August).

I looked at the Ninja Warrior place, but it seems too much of a kids party place. We've done zorb football and go karting on previous stags, so I want something different. I also think axe throwing type activities seem a bit basic and boring.

I've considered wall climbing, but I'm not sure this has the game element to it that I'm looking for. I want something that is physical and adds a competitive/team element to it.

Any ideas? Thanks in advance