HEY!
u can literally fly with some mounts over water, i mean real flying with clicking fast Space.
I just tested it with 2 mounts, because i dont have more 
The mounts i tested : The VIP Golden Unicorn
and ID: 241808
I tried to make a GIF for you so u can see, it is not the best but i think u can see what i mean 
https://gyazo.com/bc3e78117fa37b06502a34c256e05617
Best regards
