If you’re staying near the entrance, you can definitely ride a bike or even walk. It’s all relatively close. The road is completely flat and paved, so you shouldn’t have any difficulty biking it or walking it.

You are not allowed to drive through the main canyon - you must take the shuttle from March-November. During the winter, you would be able to drive through the main canyon. Should you have mobility issues, you can apply at the main ranger station for a pass to be able to drive and park into the main canyon.

If you don't have your valid pass you will have to pay the $35 entrance fee. I fell into this trap when I went to the Grand Canyon. I visited both sides within 7 days and after losing the receipt from the south entrance I had to pay again at the north entrance. Just make sure your pass is signed and you have other ID just in case.

I drove thru by car. I do believe the bus was running when I visited.

Springdale is the best location. I stayed at the Historic Pioneer Lodge and was very happy. It is very close to the entrance to the park.January can be cold or warm, pack layers you will need them to hike. I was there in February and the temperature variance was nearly 40 degrees during my hike up Angels Landing. If you are hiking, BRING PLENTY OF SUPPLIES!!

Roads are narrow,twisty and steep.The views are worth it .If you are not driving, you should be okey.

It’s about 20 miles return from Springdale to the Temple.

Yes you can drive through but weather maybe a factor. The turn off to Zion is north of St. George (UT 9). Continue to US 89 north to UT 12 east, north of Hatch follow to Bryce. There is a considerable elevation gain and weather will probably be an issue in December. The drive in clear weather and no stops would be 8 1/2 hours, don't count on that. You will no doubt want to stop in the parks for pictures etc.

I did not. However I was there during a particularly warm spell last February. I believe the shuttles run from April on through the summer and the information you have is correct. This is to cut down on tie ups and congestion.

Driving through Zion is unbelievably beautiful! There are actually 2 scenic drives, one via shuttle and one via your own car. The one in your own car is the best in my opinion. And yes, the Overlook trail is gorgeous! I saw bighorn sheep on the trail and the best views at the top. There is NO parking however, a tiny lot as you exit the tunnel and it is very quick, easy to pass up! It holds maybe 4 or 5 cars so you may have to sit and wait for someone to move. Totally worth the wait!! You're going to love driving through Zion. I drove the scenic road at least 8 times in 3 days. Pictures just don't do it justice!