In the Spring of 2012 five undergraduates from Columbia University were selected to participate in a class called ‘Sea-going Experience in Earth Sciences’ taught by Professor Maya Tolstoy. Classes were held during the semester that introduced the students to some of the basics concepts of what goes into conceiving, proposing, conducting and learning from a scientific research cruise. Having been prepared with both general and cruise-specific background the five then boldly ventured out to sea to participate in a two-week leg of a cruise aboard the R/V Thomas Thompson, funded by the National Science Foundation, as part of the community Cascadia Initiative (http://cascadia.uoregon.edu/CIET/). The Cascadia Initiative (CI) is an onshore/offshore seismic and geodetic experiment that takes advantage of an Amphibious Array to study questions ranging from megathrust earthquakes to volcanic arc structure to the formation, deformation and hydration of the Juan De Fuca and Gorda plates. Led by Chief Scientist, Maya Tolstoy, the five kept this daily blog as part of their class work, to inform the outside world of their adventures. Inspired by the life and work of Lamont-Doherty legendary sea-going scientist, John B. Diebold, this sea-going class was named Team Diebold starting with the 2011 class. For the 2012 class, they are known as Team Diebold 2012.