Better not. It will be hard to hold him safely during the slide. I don't recommend it
Going down the tubes pill will not be a problem, however getting up to the resort will. They do not let toddlers on the Gondola so you will have to hike up two Miles carrying your child. Definitely choose another tubing place!!
You would have to call the resort. I brought my 5 year old with no problems. Keep in mind you have to pull the tubes back up the hill and you might have to carry your 3 year old as well. The elevation makes breathing a challenge. That being said, the tubing is in 2 hour increments and if they allow 3 year old I would do it but I would put a helmet on your kid just in case they slipped off.
I doubt that but even if its allowed, its not safe to do that in case you topple over!!
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