A walk in the forest

We had a lovely day today. At 11 o'clock we went for a hike on a new trail and had a nature reserve ranger explaining a few things on the way. The hike ended after three our with a delicious meal. To top it all, it was sunny and warm.
I found this mushroom right at the beginning of our tour. Looks a bit alien to me. Funny colour. Haven't got a clue what kind it is. Anyone?