Is there an entrance on the east/south side that i can pay for a park pass after hours? Or will I have to drive to the main entrance and then back to the camp? We have a reservation in May and will be arriving very late, coming from the east.

There is an entrance on the east side of the lake that has a pay station at it.

No cost

Yes there is a pay station at the south/east entrance

The main office opens at 830 and they would be happy to help you and answer any questions.

Yes

There is an east side entrance, and there is a little placard that's brown after you pass the station where a person would be in there too pay for the pass. You walk up and you fill out this little paper and you pull off the yellow paper to stick on your windshield and the white paper has a built-in small envelope, that is where you would fold up your money slide it in there and it seals itself shut. There is a 3-ft tall silver rectangle that's right in front of this sign, and there's a little slat in the front, that is where you would slide that sealed white envelope with your money into after hours, or on weekends when there isn't a person in the building. If you want though, you can wait until 9:00 a.m. when the main office opens and pay that way, but if you want to pay before you get to your spot there is that little kiosk there. The kiosk also accepts debit and credit cards via a standing reader and it will print out a sticker for your passenger side windshield.