Secret treasures and areas are all over the place in Baldur's Gate 3. It's virtually impossible to get every secret in any single playthrough as the combinations of choice and abilities will often limit what the party is capable of. Still, it's reasonable to want to get as many hidden treasures as possible.
Baldur's Gate 3: How To Get Into The Toll House Secret Room (Stone Chair Puzzle)
When players look at the map of the Toll House of Baldur's Gate 3, they can clearly see a secret room but it's tough to actually get inside.
