cavalier and UVA2B are right: the type of legal work that you do during your 1L summer isn't immensely important (people don't really get pigeonholed that early on, and "I just wanted to try X" is an acceptable reason to take a 1L summer job), but doing something that isn't legal work starts to create the impression that you're not that interested in doing legal work, particularly if you're K-JD or close to it. If nothing else, you'll have less to talk about during interviews than people who worked during 1L summer, which puts you at a disadvantage. What you're doing could be worthwhile, but consider the risks carefully.
(W/r/t the Geneva thing, I'm mostly being facetious, but if it's
https://law.duke.edu/internat/europe/, it's probably not a good sign for the seriousness of the endeavor that the third paragraph describing your summer experience discusses "sailing, rafting, Alpine hiking, wine-tasting, and exploring in neighboring environs."

)