Fishing lvl16, cooking lvl43, woodcutting lvl 35 can be done wherever you want (they're min reqs for this mode).
Movements are allowed only by walking/running or via boat (no tele wizard, lodestone, fairy ring, command or teleport for travel between locations).
Allowed teleports: only from/to ports or islands, Aubury for mining essences and Dark Mage for runecrafting.
Only ports, islands and places close to ports are playable locations, with a few exceptions: ;;home and the mainland are allowed only if the output of what you do there serves this mode (the first logs for the ship, mahogany homes for construction, basic gear, herbs for potions, runes for combat/alc, etc...). No "XP-only" skilling is allowed in ;;home and the mainland, all must have the purpose of getting you ready for this mode.