Interesting. First step is to validate your idea with the market: Set a minimum success criteria for how many customers you want to have on Day 1 to prove that the business is validated with the market. For example, set a goal to get 5 people to pre-pay for jet ski rentals and go to talk to people and get the sales. Set them in the schedule for Wednesday. Then make sure you have the paperwork and jet ski by then. Business validated. Go get more customers. Running it remotely within in a week... I'd have to think on that one a bit more.
Anything is possible, never forget that.
To your specific question: Obviously the most critical time a business needs your hands on attention is in its infancy, so being there is ideal, not being there, is not ideal. However, if you have already proven the business in other areas and you have a blue print that someone else on the ground can follow to the "t" that you trust, it could work.
Just understand the risk / reward associated with this decision.