In the Arctic you need to be fit to be able to do the more difficult and demanding hikes. But there is always an option to join one of the less demanding hikes. Our guides can advise you which hikes will fit you. In Antarctica the hikes are in general not too difficult for someone that has a good state of health. You need to be able to do a 4 to 5 hour walk in fairly rugged terrain with some up and downhill walking. No other special skills are required.
Please note that we are going into fairly unknown terrain. There can be rocks, snow, mud or a frozen hard surface to walk on. We sometimes can only tell more about the difficulties of the hike when we are there at the spot, just before the landing. The weather can also make a walk easy or difficult.