If Bodmin is on your list, take a look at Coldharbour Farm, a self-catering holiday let with the coast and countryside to explore. Booking direct means you talk to the owner, not an agency. Wi-Fi / internet access is available.
“Six stone cottages imaginatively converted from traditional farm buildings, dating from the 1800s, arranged around a delightful, atmospheric courtyard. Garden with BBQ, childrens play area, games room and laundry facilities.” – the owner