Fins and Mask - available at resort? Rentals?

[hackwriter]

Tensing Pen is booked - do they have fins and masks available to guests?

If not, is such equipment available to rent in the West End?

I seek these items for daily swimming, I am not seeking a snorkel guide.

Last time I was at Costco they had nice mask/fins/snorkel set for $39.99. I don't use fins but it's nice to have a mask and snorkel.