new guidelines out today
Government guidance states that if you are planning to hold a leavers' event, you should avoid hosting large group gatherings indoors for more than one bubble (if your setting operates bubbles) or consistent group.
However, as outdoor events are generally lower-risk, once you have undertaken a risk assessment and planned your event in line with your system of controls, you may consider an outdoor event (for example a leavers’ celebration or prom) that caters for more than one bubble or consistent group, as long as the groups continue to be kept separate.
Any parents attending outdoor events must adhere to current social distancing requirements. Where outdoors spectators can gather in groups of up to 30 (again, multiple groups of 30 are permitted).