Real Sandstone Cave, Grotto & Woodland near London

Open February to November; closed December–January for a legally protected bat roost (lighting plans agreed in advance; smoke, haze and drones only with prior written approval). No mains power: batteries, or a pre-approved silent generator kept outside the cave. No toilets or running water at the cave; the owners' private toilets are 2 minutes' walk away by arrangement. Parking for 15 vehicles on the owners' property (3-minute walk) plus public parking 2 minutes away; Luton vans and small trucks supported. Productions need £5m public liability insurance and a written risk assessment at least 7 days before the shoot. A public footpath passes the cave mouth and must stay open. Rates (no VAT): professional from £2,000 half day / £3,000 full day; non-professional from £700 half day / £1,000 full day. Recces by appointment.