This workshop is organized as a collaboration between the 6th Workshop on Computer Vision for Analysis of Underwater Imagery (CVAUI) and the 3rd Automated Analysis of Marine Visual Data for Environmental Monitoring (AAMVEM). Visually monitoring marine environments poses a vastly different task compared to monitoring terrestrial environments. It is physically challenging to acquire underwater data, and the data typically have low signal-to-noise ratios due to the scattering nature of the water body. The aim of this workshop is to deepen the understanding of the challenges related to marine monitoring and to advance computer vision techniques to address them.