Best bet (usually) is to take a bus to the nearest park, or to the TTC (though to Boma, that's a bit far). Buses do not usually make stops (most resorts have their own dedicated bus lines, though some share, if they are close enough). Otherwise, each has their own bus. Problem is, there are no resort-to-resort buses. The OTHER problem is that buses do not begin running back to the resorts until mid morning, as no one is leaving the park at such an early hour. You might want to call your hotel now and ask what the possibilities are. Overall, this isn't Manhattan, with lots of stops between hotels and parks. You won't be the first person to ask that question, and they should have a solution readily available for you. Good luck.