If you're talking about a private transfer provided by the hotel, I believe I read somewhere that it was a ridiculous sum of money, like $100 a person one way?? As far as 'official' taxi rates, that's actually not been my experience, that they abide by them. That trip to Secrets, I would venture will probably be about the most expensive taxi ride there is on the island. My guess would be about $40 one way, plus bags and tip. If it were me, I probably would just contact Wilfred Brooks via the link here on TTOL and ask him for a quote and then go from there.