We used the island at a lake, oars helped us move it around in the water and we did anchored it to keep it in one place. My teeage boys had a blast and the adults enjoyed it as well. The only thing we had trouble with was getting back on the island while it was in the deeper water but even that caused more than a few laughs! The materials are heavy duty and constructed well. It is easy to inflate and deflate (actually fit back in the original box). We are happy with the purchase.