A multi activity climbing tower uses support structure to host additional activities. A Multi activity tower could be made as a 4 to 8 sided tower. Activities possible are: rappeling, tyre wall, free fall, commando net climb, zip line, zip cycle etc. A free standing climbing wall mostly has only 1 active surface that are used only for climbing purpose. Sometimes there are 2 active surface with one being used for speed climbing and other for route climbing.
A multi-activity climbing tower has more than 2 activities from the same climbing wall tower. It generally uses multiple phases of the climbing wall steel structure to increase the utility of the space and provide additional adventure activities like rappelling, slithering, zip line, target jump etc. at less incremental costs.