More than one player may be on the summit at one time. A player can not go down the same trail that they came up. They must choose a new trail. A player does not need an exact die roll to reach the trailhead and end the game. If all the cards are used during normal game play, shuffle the deck.
Some trails are longer, but are easier than the shorter trails.
The first version of this game was very complex. It included carrying supplies such as food and water, restocking those supplies, keeping track of how much weight you were carrying, etc. Throughout the entire design process I've had a difficult time trying to keep the game as realistic as possible, but playable. The two seem to be diametrically opposed in terms of complexity. The game board went through similar revisions.