If you see it on your rivers... don't delay. It grows frighteningly fast, so pull it out and put the strands somewhere dry to die.
More information about how to do it here
This is the blog for Tom and Anne's kayak journeys, mostly in Scotland, sprinkled with a bit of mountain biking. The blog starts in 2009, when we spent a month kayaking up the NW Scottish coast from Gigha (ie level with Glascow) to Ullapool.
Alsa busses are a great way to get around Andalucia. They're cheap, and they seem to go everywhere. No problem taking bikes, so long as you take the front wheel off, turn the handlebars and wrap them up. You also need a 5Euro ticket for them as outsize luggage.
Once compacted down to 120cm x90 our bikes were free on Renfe high speed trains, but slightly worryingly, on some of the trains there was nowhere sensible to put them, so we were somewhat relying on the kindness of the staff not to make trouble.

