David I just happened to notice this. You do need to make reservations in advance with YNP. This link will be a start, the map in the borchure link will show you the campsites. https://www.nps.gov/yell/planyourvisit/backcountryhiking.htm
I like to launch from Pelican Creek and paddle south verses launching from the southwest side. We get to the top of the arms the first night either camping in 5E6 or 5E4 in the southeast arm or in the south arm in 6A2, 6A3, 6A4. I like crossing over to the south arm but it can be a high wind crossing in late afternoon. If I camp in the south arm I generally loop the arm the next day and go to the southeast arm. In the south east arm we camp for 2-3 days in 6A2, 6A3, or 6A4. I llike 6A2 it is not as good of mosquito habitat. This video shows the basic path from Pelican to south arm to southeast arm and back to Pelican. If you look in my videos there are some more from Yellowstone lake trips following the same basic path. https://www.youtube.com/edit?o=U&video_id=VOA67AuDq1E It is a high elevation lake so afternoon winds are common, mornings and late evenings are generally calm. I would be glad to answer any more questions you may have.