Booked our 7 day scuba diving liveaboard trip on the Humboldt Explorer with Leslie of Dive the Galapagos.com and just wanted to say that Leslie was wonderful to work with. She answers emails promptly and her correspondence is complete and professional. I will not hesitate to recommend her. Humboldt Explorer is also a great liveaboard for diving on Wolf and Darwin Islands. We were there from March 21 to 28 2011. Hammerheads, eagle rays, sea lions etc! But conditions are definitely not for beginners! Currents and surges are strong. Topside swells are huge. A number of the divers got sea sick, and these were very experienced divers. Definitely a dive trip of a lifetime.