Thank you for this game. The menus are very polished, that's quite impressive!
I appreciate that you put the effort into adding the latin names and factual data. I'm trying to think if there's a way to make each reveal more unique... Maybe if the information container shows first only the image of the shell and after some miliseconds show the data?
Not sure how you tested the game but it seems that to unlock the next beach would require finding 500 shells before I can see the next beach. 100 shells ~= 6000 gold.
It can get tedious to click five hundred times (not counting swiping the sand)... Maybe it's just me.
Good luck!