From the Super Mario Wiki
Royal Raceway is the third racetrack of the Star Cup in Mario Kart 64. The race takes place around a giant lake and it is easy to fall into the water. There is a big jump over the lake in one section of the track. If the racer goes off track after the jump, they can see and drive around Princess Peach's Castle, as it appeared in Super Mario 64. The Award Ceremony also takes place in this racetrack at the end of the cup, where the top three drivers receive various trophies, and confetti for the big winner along with the gold trophy.
The course will reappear in Mario Kart 8 as the third course in the Banana Cup, where it has taken a dramatic change in appearance. The long jump section now encompasses a gliding pad, which allows players to glide over the large gap. There will be a bunch of hot-air balloons based Princess Peach, Princess Daisy, and Rosalina's dresses, like in Daisy Hills from Mario Kart 7. There are also cherry blossom trees like in Mario Circuit from Mario Kart 7. The road leading to Peach's Castle is now blocked off, unable to be driven around like in the original.
Instruction manual description
Of the three speedway-type courses, this one covers the greatest distance. The big jump after the dash zone is very dramatic. Without guardrails along the lake, it can be very easy to overshoot the corner and fall in!
Names in other languages