RNLI SOS Day is observed on January 29 and is associated with the Royal National Lifeboat Institute (R.N.L.I.), a charity that provides a 24/7 lifesaving and search service around the U.K. and Ireland. The organization, primarily composed of volunteers, operates 223 lifeboats and focuses on saving lives in crises involving water. RNLI SOS Day aims to raise awareness about water safety and the importance of the R.N.L.I.'s work, which includes providing lifeboats, coastal safety, and flood response services. The R.N.L.I. has a rich history of nearly 200 years, during which it has rescued over 143,000 lives. The charity also emphasizes education and training in water safety, encouraging community involvement and support.