Freeze Harbor problem

[songa01]

Hello, I cannot figure out how to collect the gems in Freeze Harbor on the elevated plateau near the water at the beginning. To elaborate, the gems are next to the second spiked mine that you have to destroy using the cannon from over the wall.

Thank you for any help.

[Bobywan]

I don't really see where you mean. Watch a youtube walkthrough:

https://www.youtube.com/watch?v=isJWT07T390

[Ziomislaw]

you need to fly there