Hidden Catacombs

Gridmapper Ⅱ:Hidden Catacombs: Just look around

(22,1)ffff
                    fdddffffdt
        fffff       ff
        sv    f       ddddvvvff
        dddvffbvv  ffffffffffffffff
        sssv    f           ffffssssvvvv
        ffffdddfff         f
              f         f
              f         f
              ddddf    nv svv fffffff
        ffffffffddddvffffff    fff
        fff     f  ffsvvv     fff
         f      ffffff     ff
         f         ffnnnv
         f     nvvv nnvv
         fffffffnnnv f
         f       f
         f       f
         f     nv fffnnv
     ffffddf     nnnnv fffnnnv
     fffff       f
     ffb ff       f
     fffff       f
                fff
                fff
               fffff
                 f
                 f
                 f
                 f(30,20,0)