If you walk east along the Bournemouth Coast Path and keep going you get to Brittany.
This is because the BCP is part of the E9 which links at Dover with France leading down to Spain and Portugal. Or you can go further east along the Belgium and German coast.
The latest news is that the Emerald Coast section in Brittany is opening after a 37 year dispute.
Whether the BCP ceases to be part of the E9 after the end of this month is uncertain.