Hey there! Are you looking for underwater photography or above surface photography?
When I was starting underwater photography I made a mistake because I bought cheap equipment and in return, my camera was infiltrated by water and that was a horrible experience.
If I remember correctly It happened in Coney Island.
I was doing a documentary for my school project that time and I do not have any choice but to borrow a camera from
https://www.adoramarentals.com/p-~caxf705/CANON-XF705-4K-UHD-CAMCORDER-HDMI20
This is worth it because I won an award for the documentary that I made and I earn some cash by selling the photos I took.
Lesson is buy quality equipment because it is worth the investment.
