As seen in FIG. 2, the staircase ladder 23 has five steps 14 whereby the steps are spaced closer together than in typical four-step staircases to make it easier to enter and exit the pool.In-Pool LadderThe in-pool ladder's opposed rail structures 30a, 30b, and steps 14 are blow-molded of plastic, such as, for example, high density polyethylene, polypropylene and/or or other suitable material, to h