Punta Cana fishing with Big Marlin Charters

[Laurencee]

Has anyone ever been to Punta Cana in the Dominican Republic? I'm heading there next week for Punta Cana fishing with Big Marlin Charters (https://bigmarlinpuntacana.com/punta-cana-fishing-charters/). Any others must see/must do locations or activities? Any tips?
Thanks guys.