Just over a decade ago I set up a Tripadvisor account for one specific reason. I was tired of the amount of misinformation about Tenerife being posted on the travel site, especially in relation to the differences between the weather in the south of the island and the north. A 10C variation in temperatures between the two sides of the island was regularly being quoted...
La Gomera and Gran Canaria are best for stepping from the door of rural hotels and onto walking trails, whereas La Palma remains the purest Canary Island as far as we're concerned - Tenerife offers the most diversity.
The Anaga Mountains: our favourite walking area on Tenerife by a thigh stretching mile. We reckon if you did a Mr T with someone and dropped them in this spot they would never guess in a million years they were on Tenerife.