Yes, we do allow only small lap dogs on the research vessel as long as they stay on your lap attached to a leash. Unfortunately, from experience, larger dogs who need to be on the floor pose a danger to themselves and people once the passengers move around to watch whales. The zodiacs cannot accommodate any dogs because of the inflatable pontoons. We do have a spot behind our office where they can be kept outside in the shade. The person at the office can keep an eye on him or her. All of us are pet lovers.