Word of mouth as well as my own experience suggests Rocky Shoreline is perhaps a little too profitable, challenging even the likes of Sky Fortress in terms of poke per floor.
On top of the large quantity of poke piles, pearls, and big pearls that generate most of the raw cash, honey and reviver seeds are also quite common. As a result, this dungeon appears to be way too lucrative for a level 50-60 dungeon.
Thank you for making this suggestion in the interest of game balance. Rocky Shoreline’s pearl and reviver rates have been adjusted by @Pencil, the dungeon creator. The entrance map has also received a revamp, which @Prismatic has helped with as well!
If you have any additional feedback, please let us know.