translate English to German: Phil's knowledge is extensive and it is obvious that he can easily adjust the level of explanation of volcanic features and processes to the interests and background of participants.
As you know I was the only participant which worked well for me as we had a suggested itinerary, but was able to modify to suit my requirements, including the incredible boat trip to view lava. I have travelled extensively, and this boat trip is definitely up there at the top with other unbeatable life experiences.