A workshop focused on glacial isostatic adjustment (GIA), ice sheets, sea-level change, and associated geodetic and geophysical observational constraints will be held at the Institute of Ocean Sciences (IOS) and Pacific Geoscience Centre (PGC), located near Sidney, British Columbia, Canada, from 2-6 June 2025.  The workshop aims to bring together 80-100 researchers of all career stages to discuss recent advances in the observations, analysis, and modelling of GIA.