Depending on ages. When younger my kids loved to play with their toys in the site. We had a box of army men, trucks, super heros, gi joes, what ever they were into at the time on board at all times. Board and card games, Also fished, rode bikes, scooters, hiked, They made pet rocks one year. Just let them enjoy the great outdoors. We also got an ice cream ball and theyd make ice cream by rolling it around. We use glow sticks to light the bathroom at night its just enough to see. :)And get the liquid tank chemicals. Easier to deal with than the chemical baggies that take 10 gallons of water.