Ideas to further improve the game

Whilst I would love to see different habitats, e.g mangroves and Cayman crocodiles, I realise it may not be realistic! So, for what I think would improve the game which should be hopefully be more realistic, how about considering the addition of: caves, raincatcher, larger islands, and ruined ww2 bunkers? (Beaches should also sadly be littered with plastic bottles).

Water stills catch rain