how much to get picked of with a taxi?

There is no fix price with taxis and the advice is to arrange a price after you hop into the taxi, you can bargain and get good deals, but you can rent a car for $50 dollars a day, so unless you are drinking there is no real reason for taxi, Los Cabos taxi service is expensive, not safe and not nice. I am sorry to say this, but it is the true. Taxi history in Cabo is long and complicated, full of political favors and war between authorities, transportation companies and taxi unions.
There is no fix price, ask for a Taxi, tell them where you are going and how much will it be, do not hop on the taxi unless the final price is set and arrange.

Rent a Car.

Good luck