There is no shop on Papa Stour, so you need to bring your own provisions. However, there is a waiting room at the ferry pier, where you can use the facilities and grab a cuppa!
There is a small grassed area near the waiting room where pitching a tent is permitted. There are no electrical hook-ups. Please note if a wild camp elsewhere on the island is your plan, it would be appreciated if you try and ask the landowner before doing so.
The ferry terminal is interesting - there is a microwave, coffee, a kettle, fast internet, heating and souvenirs from the island. Very lovingly looked after! Highly recommended