You really are playing the thick obtuse card aren't you? Maybe it's just this thread. The answer is so blindingly obvious it is ridiculous.
Simple. Far far away implies the people far far away won't recognise you. If there are one or two who do, are they going to be the variety who are involved in anti-doping? No, no, no...that WOULD NEVER happen now would it? It's not like JV was on this forum saying what is actually spent of anti-doping is a joke. Small budget...yes they have all the money in the world to travel on planes ALL the time! Travel away out of the reach of the feds/fuzz you remove one element who will catch you doping. Thus adding in the cost and inconvenience of going after you. WADA or whomever want to catch you, they have to follow you. Random testing...well the odds of that happening decrease.
But why stop there hey genius? It's not like an isolated island has many access points. Thus if you're in, is it that hard to imagine you can get a heads up on someone coming your way? Nah that is asking too much isn't it?
And then there is the real pearler...people's mums and dads will catch you doping...like one real smart guy proposed above. To that poster...please DO NOT BREED. Anyone could shoot up in front of your folks and they would not notice with those rose lenses on their noggins.
No, the most obvious reason is that when Michele Ferrari is trailing behind you on a mountain on a vespa or scooter, with stop watch in hand, you don't have some pesky Italian conti director driving past going "WTF, Pellizotti and Nibali have F%$KING MICHELE FERRARI behind them!" Get the point? Do that in Spain or Italy and you'll get noticed. No matter how hard you try and hide it. Go to Tenerife or some remote place like Armstrong always did...how many people could name every cyclist by face alone? How about their doping doctors?
Sky go to Tenerife to lower the probability of them being interrupted doping. That is it. Less frequent (if any) Passport tests, less out of competition scrutiny, you can do whatever you want with full confidence it'll work, you won't be interrupted and with the Doctor of your choice hitting your veins up with all manner of performance increasing drugs you could ever dream of taking. If people here are too daft to draw the parallel between Sky not going to Tenerife and being pure crap one season and then the next ONLY a select few go and ALL of them become world beaters...yeah, stay out of the Clinic. Go home, crawl under your bed covers and live oblivious. Why? You're the type of people who believe in fairy tales. In coincidence. That everything is fine and dandy. Truth be told, you best mate is probably balls deep in your missus in your bed and you will never ever notice. That's how oblivious and devoid of simple observational skills the deniers around the Clinic come off as. You should all thank your lucky stars the guys you dislike in the Clinic have scruples and morals because you are ripe for being conned and taken for everything you have every waking second of the day.