Very fun! Scales really well and feels natural as breath and speed increase over time. Puddles are forgiving enough. The buffs make a difference before the waiting gets tedious. Yes, I made it to the ocean and it felt splashy!
Game is tiny in browser; I zoomed my browser to read directions, and then put on my glasses and squinted really hard to play and it was (mostly) ok.
I could imagine this on mobile, perhaps as an alternative to counting sleep, as it is rhythmical, enjoyable and relaxing, and calming.