Translation of integration in Spanish

My family is doing well except for my youngest daughter. She is a little ill and needs to visit many doctors. She has had several infections lately, but nothing dangerous, so we are not too worried.
We joined the mass and climbed it. The stones were a little slippery and I doubt that this place is accident free. Climbing big slippery stones was not an easy task but we managed it slowly.
One hour later, at sun set, we overflew the amazing Misti volcano which is located right above Arequipa. The mountain had a golden glow and its view was breathtaking.