Underwater ruins, temples and dungeons
After obtaining the Diving Helmet, the Swimfins, and several potions and food items that increase oxygen, I feel there are not enough places where all this underwater gear can really be used.
I would love to see larger and more extensive underwater areas to dive into in search of adventure and treasures. The water mechanics and visuals are excellent, and it feels like a missed opportunity that there are currently so few underwater locations and secrets to discover and fully enjoy.
Please consider adding more substantial underwater ruins or exploration zones in future updates.