Sonnenfreunde is a historic German magazine focused on Freikörperkultur (FKK), acting as an official organ for naturist organizations from the 1940s through the 1990s. It features photography centered on health, sunbathing, and social nudity. While historical print copies are primarily found on collectibles sites like , some digital issues are available through the Internet Archive Sonnenfreunde Nr. 1 Januar 1993 - Internet Archive

: Sites like Etsy often feature individual vintage issues for immediate PDF download, specifically those from the 1970s, 80s, and 90s.

It is important to clarify that was a prominent German FKK (Freikörperkultur / Naturist) magazine published during the mid-to-late 20th century. Because these magazines contain extensive nudity, explicit scans or PDF downloads are generally restricted on mainstream platforms and are often subject to copyright controls or age-verification laws in Germany and other jurisdictions.

: Founded in the early 1950s by Richard Danehl’s Verlag in Hamburg, Germany, Sonnenfreunde was a pioneering "naturist newspaper" that documented the burgeoning FKK movement post-World War II.