I'm curious - the race was officially cancelled, but did the St Johns ambulance teams stay on site if needed? I've run the race twice before, once in hot conditions, and both times they were kept busy.
I digress, but why walk when your batteries go flat? It must take absolutely ages to toddle on home when you could run (and discover the joys of running without music), or just put a couple of spare batteries in a jacket pocket.
Nick - can't help you re the protein on board, as I don't need it for my distance, and my carry on is just full with my trainers and running clothes!
However, we've just booked today to go to Los Pocillos (which is just above you) at the end of November as there's the Lanzarote Marathon festival on Sunday 08 December, and I'm hoping to do the half marathon.
It starts at the far end of Costa Teguise and runs down the coast, past the airport path and down to where you are. Have a look on their web page, as there's several events on the day and a little video showing some clips. Not quite clear on whether out & back routes and mileage on there. I'll be entering shortly before we go so will have fuller detail when I do this.
However, we're back a couple of days after the event, and if you want to PM me then I will email over to you everything I've got showing clearer detail, routes and mileage from my Garmin if it helps you plan for next year.
Also, we've been to Costa Teguise before and it's good for runners, have been running in Playa Blanca, and a friend of mine who visits PDC regularly says she sees loads of runners along promenade going up to airport as it's a good flat run, so I don't think you'll be short of decent runs to keep up that mileage!