Most coastal car parks prohibit overnight stays and have height barriers. Your best bet is a nearby campsite or CL. Some car parks at West Bay and Charmouth tolerate motorhomes during the day but not overnight. Check signage carefully as enforcement varies.

Yes, but you'll need to park and walk to most coastal spots. The B3157 coast road between Bridport and Weymouth is driveable in a motorhome if you're comfortable with narrow sections. Main viewpoints like Portland Bill have suitable parking. Lulworth requires using the overflow car park.

June or September. July and August are heaving, especially around Lulworth and Weymouth, and the A35 crawls. Late spring has good weather and empty paths. October works if you don't mind cooler evenings and some sites closing.

Yes, widespread along the coast. Most are set at 2 metres. Check before driving in. Car parks at Lulworth, Durdle Door, Studland, and several Weymouth locations all have them.

Several campsites offer waste disposal and water to non-residents for a small charge. There's no dedicated motorhome service point network in Dorset. The larger holiday parks around Weymouth and Poole are often the most accommodating. Ask at reception before pulling up.

Not legally. England has no right to wild camp (with limited exceptions on Dartmoor). Dorset's coastal car parks are monitored, and you'll likely get a knock or a ticket. Use legitimate stopovers instead.