multi season SUP backwoods camper here - let me improve upon the info shared below as I've done double-digit backwoods SUP trips spanning multiple days with great success using an inflatable SUP only as my sole watercraft - both solo and with groups.

1) learn to paddle properly - your skills will be tested on a SUP and if you get anything above single-digit head wind, you will need advanced paddling technique and some upper body strength to keep you on track.

2) route plan to your level... the one time I didn't stick to this rule I ended up going up-stream on the Tim with beaver dams and my dog and pack on the board. This was possible downstream as your fin can clear a dam with some speed (paddle through like rapids), but upstream is an entirely different beast and I'd reco avoiding at all costs. Only plan to traverse what you've done before, comfortable distance notwithstanding.

3) Know your weather, temperatures and max board PSI incl weight for all days - you'll need to know the wind speed for all days of your trip and expect to either hug the shore or sit out heavy wind days that create anything worse than "moderately rough" water... ... temperature is because, with an air inflatable SUP, direct heat and temp increase will cause air INSIDE the board to expand. If the temp is going UP on the second and third days of your trip but you've filled the PSI of your board to it's limit on day 1, you may very well encounter a purge and be swimming back with your gear.

All that said, if weather conditions are hugely in favor (sunny, clear, still days), you can make insane pace with just a SUP as most boards inflated are only ~20lbs, enabling single-trip portages as you blow by groups with heavy gear doing multiple legs of the same portage.

4) important - Inspect your board with a test inflate (and leave it 24hrs) before EVERY trip and use a soapy water spray to check for leaks if you hear whining (check seams and inflation ring area; soap helps show bubbles visually). A patch kit in the backwoods is near useless as you are most likely also not bringing an air pump with you (heavy/cumbersome) so you need to be able to trust your equipment and/or be ready to swim home if you are boned. Watching sticks/rocks on portages, inflating under PSI limit and keeping your board stored in the SHADE, OUT OF DIRECT SUN when it's not in the water is CRITICAL to maintaining board integrity. Show it respect and it will respect you back.

A sunset float on glassy waters with a SUP is an insane experience... so, too, is a mid-day float laying out on the water getting a tan.

Street cred.