Gianne Derks, David Lloyd and Tom Bridges attended the SIAM Conference on Nonlinear Waves and Coherent Structures held at the University of Washington in Seattle in June 2012. Gianne Derks gave an invited minisymposium talk on “Viscosity-induced instability for Euler and averaged Euler equations in a circular domain“. David Lloyd gave an invited minisymposium talk on “Hamiltonian structure of the ferrofluid problem” and also presented a poster on “Localized patterns on the surface of a magnetic field“. Tom Bridges co-organized a three-session mini-symposium with Frederic Chardard (ENS Lyon) and also gave a mini-symposium talk on “Emergence of unsteady dark solitary waves from large-amplitude periodic patterns“. The website for the NW12 conference is here.