La Sein Go Rose is a pink-themed charity run and walk in Saint-Gaudens, focused on breast cancer screening awareness and research support. On event day, the town center is decorated in pink, with activities centered at Place Jean Jaurès. By its ninth edition, the event attracted over 2,300 participants, including 590 runners.
Walkers follow an 8 km route past Boulevard des Pyrénées and Sède Lake. Runners can select a 5 km loop along Boulevard des Pyrénées or a 10 km option descending toward the Bordebasse area. The day also features coached warm-ups from L’Orange Bleue, music by the local band Crippled-chicks, and support from ice climbing champion Ilona Serrar as event sponsor.