From the CAA link ( my bold):
". Aircraft should aim to remain within the airfield circuit. Unless safety of flight requirements dictate, the aircraft should not travel beyond a 10nm radius of its departure aerodrome and no dynamic manoeuvring activity should be flown. Each flight should be at the highest practical height to minimise to the noise impact on members of the public maintaining social distancing, and not below 1,000ft AGL except for take-off, approach and landing."