First, all parks can be very crowded, so plan your visits. Download My Disney Experience to get real time information on park hours, events, character showing and Wait Times for all attractions. Select the attractions you want to do and try to get FastPass+ (3 per day) for those. If you cannot get the FastPass+ for the most popular attractions ( flight of passage, mine train, Slinky dog...) Go early to the park and at the"rope drop" go to to these popular attractions right away. Otherwise standby wait can be 2 or 3 hours long! If you stay at a Disney resort you may benefit of extra hours to visit the parks and advance FastPass+ reservation. But be aware that there is more and more people in the parks. Once again, my advice is plan well your visits to benefit from the money you will pay.
When you arrive in the parking area, you can take a tram to the park you're going into. You will have to go through a bag check. If you park in Magic Kingdoms area, you can either take a Monorail to Magic Kingdom or a Ferry Boat. You also have the option of taking a seperate Monorail to Epcot. If you park in Epcots Parking lot, you can take a Monorail to Magic Kingdom if you'd like, so you can hop between those parks. Or you can take the Disney Buses. There's no monorails for Animal Kingdom or Hollywood Studios, however. So you'd have to take a car or a bus.
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