Being able to walk unrestricted is what the person enjoys best. Provide the person a safe flat space for them to wander around in. Provide a number of sturdy chairs they can plonk into when they are tired.
Drinks and food are required as they will require a lot of energy to fuel their constant movement. Having a path to follow also helps sustain the person's attention. When they are happily occupied following a path protected from harsh unpleasant weather they may not trying to escape especially if the entrance and exit point are disguised.