Did Dartmoor 2019 , Cornwall 2020, North Wales 2021 and have booked a cottage in the Lake District for 2022. Usually spend about 10 days, with a half way stop off on the way there and back.
Find 7 days too short, and 14 days too long for a holiday. Usually spend about 10 days, so book a cottage/caravan/campsite for a week and have a half way stop off on the way there and back. Next year will probably do somewhere in the Peaks on the way there, and York on the way back.
The joy of the 4 seat means you can carry a weeks camping kit easily.