Lot's of name misuse around here. highlight "
int_name=Water␣ramp".
Apparently from multiple mappers and nobody cared for years... :/
Most of it probably verifiable via the website: https://area47.at

things i immediately noticed:
wasserrutsche
beach sports
kletterwand
rafting (west)
fussballvereinshaus (south)

dubious but unsure:
konzerthalle (addr:housename too!)
wakeboard area (west)

dubios but actually used, however wrongly named
Beachbar should be "Beach Bar"