Before setting off: check weather, tides, flood information, parking, toilets, public transport and the complete return journey. Keep working quays clear and never assume a filming location is open to visitors.
Plan around openings
Historic estates such as Port Eliot are not open every day. Build from official calendars rather than a generic 'open now' claim.
Keep travel realistic
Looe, St Germans and Tamar Valley stops can look close on a map but require different routes and access arrangements.
Wet-weather fallback
Keep one indoor option and one flexible café or museum stop in reserve; coastal plans are at the mercy of weather and tides.
Check before you go
No stale certainty: transport, parking, access, opening and weather change. A useful guide tells you where to check—not just what was true once.