Its not necessary to give them actual exercise. This is their nature. It is beneficial to big them a bath once a week to every 2 weeks, but not something you have to do. See if your substrate is nice and moist and the air is humid they do not need to bathe regularly. Some almost never go in their water dish. They're terrestrial so like land. They are not good swimmers either so water levels should never exceed more than half the height of the frog or up to its chin. They do not need help into their burrow either they will go on their own, but it isn't a bad idea to place them in to their water dish so they know where to find it if they want to bathe.