Venice Underwater Dream Castle Escape

[old biker]

A tourist as part of trips to Venice visited underwater dream castle got trapped there. There are puzzles,hints and objects left. Find the hints, solve the puzzles and help him to come out of it.

Good luck

play

Please use spoilers for hints and walkthroughs:
[spoiler=Title Here]Enter text here...[/spoiler]

Please do not post a video walkthrough for 7 days.