Diego and Sammy the sloth are determined to find Lulu the sloth who lives in a trumpet tree.
It's Valentine's Day and all of the Rainforest animals are trading valentines, but poor Sammy the Sloth is slow while trying to meet up with Lulu the sloth. Diego and Sammy race against the setting sun, as they swim 'fast' and 'slow' to get past the caimans. Singing the "más arriba" song, Sammy climbs all the way to the top of the Trumpet Tree and delivers a bouquet of leaves to Lulu.
- This aired on Valentine's Day on February 2007.
- Dora doesn't appear in this episode herself, she only appears on Diego's valentine's card with her picture on it.