I love skiing, so I know what this is going to sound like.
Don't go.
Sobriety is the thing that the rest of your life hinges on, right?
Or put another way:
you need to "find a way to live... contentedly without booze". It's really hard in early sobriety to navigate situations like this. It's hard even when you have some sober time to navigate situations like this. You described it so well: the endorphins, the camaraderie.
You don't sound prepared for it. Going away with drinking buddies on a vacation that you know is going to be full of those desires, not to mention that if they go out and get hammered every night, you will feel left out - because you will be.
One of the things I had to accept and am still accepting at seven months is that my old friends are not really my friends anymore. The ones I primarily just drank with, it's been slow and gradual but our connection was rooted in drinking and since I don't drink, we don't connect.
There are the four triggers, right? Hungry, Angry, Lonely, Tired. Looks like you are setting yourself up for all of them, every night. Don't go.
In Gratitude
B