This is the first seed I ever posted on Planet Minecraft. It's a Survival Island-ish seed! It has one tree and a little opening with tons of coal and iron ore inside! It also has some gravel in the opening. The island has some sand beaches and rising hill. Try it out yourself!

P.S If you spawn somewhere else in Survival Mode, I am sorry. I spawned in there in Creative Mode.

Additional Notes

I randomly found it all on my own! If someone already found it, I am sorry.