In reply to Tim Davies:
Not much traffic, so here's a couple of suggestions:
Get an annual multi-trip policy, which are readily available, you can see what's covered and what isn't easily, and may well come to about the same as lots of little policies, plus a lot less hassle.
Get a Garmin Mini, especially if you're going to be regularly without mobile coverage. It's not particularly cheap, but you can turn it off and on month by month, and you can also leave reassuring messages for any concerned relatives, and even be tracked. As always with Garmin the UI is a right pita, but it does work. I believe you can get associated S&R insurance but I do that separately.
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