What exactly do you mean by recreation? Studying the Catholic faith is a great way to refresh yourself in your free time, and we could point you to literally hundreds of sources. If you want some physical activity in the outdoors, there is no prohibition against hiking, walking, fishing, and playing certain sports--as long as it does not become an occasion of sin or hinder more important things. Do you have any pious companions you could get together with, or are you looking for something you can do by yourself?
Thank the Lord for your conversion--welcome to the fold.