Los Cristianos H10 Big Sur. (I am an oldie 66.)
There will be tons going on in October and November.
I spent a lovely time there for Christmas 2016. Adults only. Has a large comfortable bar, lounge, reading area, and I had a lovely little patio are attached to my room.
Quiet area with nice gardens and a pool (I swam on Boxing Day), but minutes walk to the beach and loads of bars and restaurants nearby.
The bus station is about five minutes walk away, and I used the local buses to go to Los Gigantes (has whale watching) and Santa Cruz.
Staff were lovely and the food was good and varied.
Would thoroughly recommend it.
Have a look on a Trip Advisor to see other comments.