I used to help organise health fairs - they were very successful and good fun, but then it became a nightmare due to bureaucracy, as the venues started making daft demands about 'risk assessment' and then each therapist taking part had to provide insurance documents, then first aid certificates.
Check with whichever venue you choose, whether they require proof of insurance or event insurance (which you might need to take out for the day). Our only way round paperwork, was to hold a fayre in a farmers field - we borrowed a marquee - it worked, but we didn't get the footfall we had hoped for, as we chose a showery day!
You also need to discuss fees. Will the therapists/stall holders be expected to pay a 'pitch fee', or will you let them attend for free, collect money at the door, then distribute the takings? That can be a logistical pain in the proverbial, and I've seen friendships spoiled.
Will each therapist/stall holder charge at 'point of service'? I did a fair 15 years ago, where I got people to write their name on a time sheet (15 minute slots), then they paid me £5 when they attended their time slot. Some people didn't come back, so if anyone was hanging around, I asked if they would like a treatment, and got my £5 - so it worked out fine.
How many people do you hope to involve?

I used to help organise health fairs - they were very successful and good fun, but then it became a nightmare due to bureaucracy, as the venues started making daft demands about 'risk assessment' and then each therapist taking part had to provide insurance documents, then first aid certificates.
Check with whichever venue you choose, whether they require proof of insurance or event insurance (which you might need to take out for the day). Our only way round paperwork, was to hold a fayre in a farmers field - we borrowed a marquee - it worked, but we didn't get the footfall we had hoped for, as we chose a showery day!
You also need to discuss fees. Will the therapists/stall holders be expected to pay a 'pitch fee', or will you let them attend for free, collect money at the door, then distribute the takings? That can be a logistical pain in the proverbial, and I've seen friendships spoiled.
Will each therapist/stall holder charge at 'point of service'? I did a fair 15 years ago, where I got people to write their name on a time sheet (15 minute slots), then they paid me £5 when they attended their time slot. Some people didn't come back, so if anyone was hanging around, I asked if they would like a treatment, and got my £5 - so it worked out fine.
How many people do you hope to involve?

Truly agree. Fairs are exhausting but can really be worth the effort. Thank you for the post.