1. A lighthouse or daymark
2. Seabirds other than gulls
3. A sandy beach of yellow, white/cream or silver sand
4. A hill
5. Something particularly interesting in the natural landscape or geology
6. A geocache
7. Something unique to that island
8. Interesting ruins e.g. chapel, castle, factory
9. Information point or refreshments
10. An extra point for having an additional lighthouse/daymark or sandy beach
However my experience of an island is also affected by the weather on the day I visited and sometimes by a feeling that I can't put into words.
Here are my top 20 favourite islands and their scores:
- Lundy - 10
- Rum - 9
- Llanddwyn -8
- Bardsey - 8
- Valentia - 8
- Barra - 8
- Tresco - 8
- Iona - 8
- Portland - 8
- St Agnes - 8
- Sark -8
- Great Cumbrae - 7
- Flat Holm -7
- Stronsay - 7
- Coll -6
- Looe/St George's - 6
- Steep Holm - 6
- Herm - 5
- St Martins - 5
- Ilnacullin/Garinish, Inchcolm and Skomer - 4