Translation of Astronomie

Spanish people are always saying, that you have to live the moment, you have to live now, since you do not know what is going to happen in the future. I think it is because many have troubles.
When we contacted you, our trainer was indeed for students only. We made some upgrades since then. Our site is now a vocabulary platform, because we support the creation of lessons by teachers and sharing.
We walked by waterfalls and rivers, but the water was too cold to swimm in. The hike made us tired and we were in the valley, which meant that we had to climb up again. The climb was difficult.