Heres a little update, in that mart which is really hard to get to, it sells a cool item called a StatRock, basically when you use it inside a battle it will by random increase one stat (Atk, Def, Sp. Atk, Sp. Def, Spd) until the end of the battle. I would post a screenshot but neither the Shop Sys, The Bag Sys nor the CBS are working to show it in effect.
P.S. Soon i shall be showing you the route to the left of Hydrate Town, THe name of the Town Above! :D