This is one of the nicest twisty roads I have ridden. Stunning scenery and you go past the Royal Palace. Although it is only approx 10kms long it took us over 2 hours.
The red route looks straight but it is really really twisty and great to ride. You can explore the backroads and take a different route on the return.
Catch the chairlift to the top and climb to the lookout. Stunning views- plan to spend at least an hour here. Great hot chocolate at the mountaintop cafe.