Finished Sora Yori Mou Tooi Basho (A place further than the universe)
I was searching about adventure then i recall about the hype with this story. Basic premise of this anime series is basically bunch of school girls are going to Antarctica. Rather than comedy and adventure, i believe slice of life and heart warming / good feeling is the best description of this series. Just take note that majority of the series are not on Antarctica itself, but rather the journey on how the girls planned to go there.
If i want to put main theme of this series, probably friendship and dream. Since it is not a simple task for a normal school girls to go for a distant trip, meeting new person, becoming friends as well as hardship throughout the journey. A lot of feelings throughout this series from happiness from having close friends, sadness of person unfortunate circumstances and heart warming feeling for looking forward to the journey and the future. However dont expect too much technical stuff that will informed you will knowledge to go Antarctica.
Just take note that this is CGDCT (cute girl doing cute thing), so if you dislike fluffy stuff you might not liking this series. However, I personally think that this series come in complete package that suitable for everyone. Although sometimes it do feel a bit overdramatic and made you cry alot.
Alternative : This story remind of K-On specifically the movie where they went to oversea (i forgot was it europe or US), another story that is journey related is Shoujo Shuumatsu Ryokou. But if want more relaxing girls story in nice environment, i guess Aria series should fit well.