Yes thats a nice area and a nice beach. My DS was born in the hospital in Arona.
Los Cris is quieter nice reastaurants and beaches. Las Americas is huge, stretching from Los Cris through a quiter part then onto the main Veronicas nightlife and onto Peurto Colon where the boat trips are and onto PLaya Fananbe which is gorgeous.
The golf course itself is nice, and I'm no player but golfers said its lovely and playable.
Taxis were fairly cheap when I was there. You can walk along the beach front as far as you want and taxi back for 5-10E depending opn how far you walk!!
There are many restaurants along the front and many offer a set menu. The only thing that can be annoying is the fact that they try and tout you in all the time. Also beware of the street sellers. The restaurants which do the set menus do charge quite a lot for the drinks which is something to be aware of.
Short walk in Trave agents terms is up to a mile, but Tenerife beach front itself is mainly flat.
Are you travelling with DC's? Theres the new Siam park which was being built when I left and is meant to be brilliant, also the Aquapark and Pargue Las Aquilas in the South. Loro Park in the NOrth is definatly worth a visit and also the volcano. My favourite way to do the island tour is on one of the Jeep safaris.
Any more questions just ask here or inbox me.