These guys are out growing everything !. started in the bath tub, very cute but if you dont plan ahead plan for clogged drains lol. We got a little kiddie pool after that and had what I thought was going to be a big enough pond for ducks already but that was ok only for a couple weeks so I started digging this going to make a big pool area and a little channel going to a waterfall and put a little bridge going over to an apple tree. got as far as the starting of a big hole and they were to interested in it so I threw a tarp in it a filled it with water. they have been going crazy all day ! hahaha they lover it . diving around like they did when they were just babies in the tub. they spent the entire afternoon in there jumping around and playing.