Try watermouth cove, which is about 5 miles from Ilfracoombe. Access to the site is drectly off the Coombe Martin to Ilfracoombe road. Coombe Martin is a bit tight, so you might want to come in from the Ilfracoombe side if you are not confident with your van.
The site is well laid out and has its own cove where folks can bathe and fish etc.
Can be a bit pricey but if you are looking for a site you don't need to leave to find beach activity, hill walking and fishing, then it is value for money.
Regards,
Steve L.