Underwater ruins improvement

I remember I once tried to find suspicious sand/gravel visiting an underwater ruin and drowned in hardcore mode. In the game those two things are the only interesting thing you can really do in a ruin and are sad in size compared to an ocean monument. I think they should at least increase in size so you're not just like look an ocean ruin. Instead you should be actually looking for them and be more like how you react seeing a woodland mansion.