Question due to a curious dream I had last night.

Scenario: idealists of varying sorts willing to sacrifice their lives for this trip. Not for the betterment of mankind, but for the experience, their own personal knowledge; it's something they've been individually curious about for years. It's a bit Survivor-like.

They have no way of knowing what state the planet will be in. They have no idea what to bring, what to wear. They know that if they don't die immediately upon arrival, they'll have to figure out how to survive. No idea what the atmospheric conditions will be. The only sure thing they know is that the city they're time traveling from, that's the spot on the planet they'll wind up on 10,000 years into the future.

What mishaps, possible dangers await this ragtag, dysfunctional group of suicide-bombing explorers?