I'm unable to travel to attend, but I shared a link to this with some people who are in/closer to the UK.
I noticed the comment above about being willing to take suggestions on Covid-19 precautions, so I hope this doesn't seem too overwhelming or uncalled for:
Try to find a venue with enough space for social distancing in any indoor and outdoor areas. (I don't know enough about upgrades to ventilation that might allow for no social distancing offhand. That will likely be venue specific if you go that route.)
Have attendees take a Covid-19 test before traveling to the venue. (Ideally, have some sort of alternate and/or online plans for still hanging out for anyone who tests positive or shows signs of illness between a negative test and traveling. This can vary on your attendees and the specifics; someone who's really sick with Covid-19 might not want to do anything that weekend, but someone who traveled to the UK and is now sick but capable of joining an online thing from their hotel might appreciate having some sort of alternate plan.)
The exact specifics might depend on the venue, but ideally, every attendee should wear a face covering in communal areas, and if you can find a box of N95 masks, you should have at least one face covering to provide to attendees. (There's nothing wrong with asking attendees to bring their own face coverings, but providing one usually lowers the barrier to compliance if, for example, everyone needs to wear one before going into a small room together.)
Dining options might depend on the venue and the weather, but if eating together is part of the appeal of the event, socially distanced outdoor dining will probably carry a lower risk than indoor dining. (If group meals aren't a planned part of this event, you may want to consider letting people get their own food and eating wherever they feel is best to reduce their risk - outside, in their hotel room, etc.)
Afterwards, have a way to communicate with all attendees if someone starts showing symptoms of illness after they've traveled back home. (It may not be Covid-19, even, but you should still plan on possibly needing to notify everyone.)
no subject
I noticed the comment above about being willing to take suggestions on Covid-19 precautions, so I hope this doesn't seem too overwhelming or uncalled for:
Try to find a venue with enough space for social distancing in any indoor and outdoor areas. (I don't know enough about upgrades to ventilation that might allow for no social distancing offhand. That will likely be venue specific if you go that route.)
Have attendees take a Covid-19 test before traveling to the venue. (Ideally, have some sort of alternate and/or online plans for still hanging out for anyone who tests positive or shows signs of illness between a negative test and traveling. This can vary on your attendees and the specifics; someone who's really sick with Covid-19 might not want to do anything that weekend, but someone who traveled to the UK and is now sick but capable of joining an online thing from their hotel might appreciate having some sort of alternate plan.)
The exact specifics might depend on the venue, but ideally, every attendee should wear a face covering in communal areas, and if you can find a box of N95 masks, you should have at least one face covering to provide to attendees. (There's nothing wrong with asking attendees to bring their own face coverings, but providing one usually lowers the barrier to compliance if, for example, everyone needs to wear one before going into a small room together.)
Dining options might depend on the venue and the weather, but if eating together is part of the appeal of the event, socially distanced outdoor dining will probably carry a lower risk than indoor dining. (If group meals aren't a planned part of this event, you may want to consider letting people get their own food and eating wherever they feel is best to reduce their risk - outside, in their hotel room, etc.)
Afterwards, have a way to communicate with all attendees if someone starts showing symptoms of illness after they've traveled back home. (It may not be Covid-19, even, but you should still plan on possibly needing to notify everyone.)