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Castle Porth Anchorage
✨ Hidden gem
Castle Porth is an anchorage tucked just below the dramatic Star Castle — a 16th-century star-shaped fortress that crowns the headland above Hugh Town. Drop the hook here and you're a short walk from the heart of St Mary's, the main island of the Isles of Scilly. The setting is hard to beat, with the old granite castle looming overhead and the sheltered waters of the sound stretching out around you.
Marinas and anchorages near Castle Porth Anchorage · times are dock to dock
Based on AIS data
quiet → busy
Popular Times
How full it gets, by local hour — tallest when the most boats are here.
00:0006:0012:0018:0023:00
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Sun
- Busiest Monday through Wednesday
- Fullest around 01:00, emptiest around 10:00
- Half the boats arrive by 14:00
- 83% of visits are overnight
- Typical day stop: ~4h · max recorded 12 boats
Plan a Passage
Popular
24 legs boats have actually been recorded sailing.
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