Uncrossable tiles and similar issues

[Cerrera]

Fel
77.55n 150.23w (sea) stone pavers in air,no cross in water

ilsenhar
99.45n 1.7e one tile on north no cross
99.40n 1.24e one tile on north no cross
100.11n 1.20e one tile on north no cross
things is written in sextant coordinates, there you can compaare your found one with others and add it in a single specimen, instead of making many pages of same issue.

[culichi]

one step on east from 5.11'S 9.16W