spelunking
now that flickr -> lj is working again (it was srsly broke for like 5mo) i can post more on lj! yuriy and i went away for early valentine's day this year (we have a v-day tradition of going to the sf pillow fight with the children, so we usually go away the weekend before) up to sonora and did some caving. super awesome, and i cannot wait to go back at the end of march. 
Caves always have that mineral-ie smell, I love it.