I've only ever ridden it once and I hardly got wet. I don't recall any cannons (rode in September, so it wasn't cold out or anything), but again having only ridden once I could very well have just forgotten. I'd like to try it again sometime, but I'm not a big fan of water rides in general. The themeing of Splash is just so amazing... maybe I should just plan it at a time I could leave the park to change clothes if I did get really wet (like just before an afternoon break or right at the end of our night).