There 3 options when preparing your to visit the islands:
You will visit the populated an some amazing places at the unpopulated islands. The price will probably be on the high even with the cheapest cruises... but you know what they say, it is once in a lifetime.
Travel with an agency
They will take care of everything for you, and that is precisely the best and the worst part of it.
Design your travel on your own
The islands offer a wide range of possibilities if you combine the "free places of visit" at the populated islands with some guided-day-tours. You will have more freedom but need to do some homework to get your travel started
At Galapagos Transfers we cannot help you with the first or second options, but we have prepared a set of Galapagos Travel Guides for those of you who prefer the freedom and visit the islands on your own.