Guayaquil

Well, the Galapagos still aren't cheap...
The diving cost 150 dollars for 2 dives, the snorkeling tour cost 140 dollars for a full day and 85 dollars for the half day Isabela snorkeling tour. That does include lunch and equipment. Than there is 100 dollars entry fee to the islands, 20 dollars for something else, and around 10 dollars of other expenses you can't possibly avoid. Cheapest accommodation is around 15 dollars, the public boats between Santa Cruz and Isabela are 55 dollars for the return trip, and a typical meal will be around 10 dollars including a drink. Just to give you an idea. But it is worth it, so do go! And if you have time and don't book anything in advance you might be able to get great deals on cruises as well (we were offered a 5 days cruise for 500 dollars, which is ridiculously cheap, but we had already paid for 3 nights at our hotel). Also come off-season for the best deals and less crowds.