Sinai is a peninsula of great strategic significance, lying between Egypt and Israel.
It is interesting from a geological point of view , but there are also some historical and environmental places too.
There are also resorts like Sharm el Sheikh at the southern end.
When you cross over the Suez Canal is Ismailia, and then enter the Sinai desert, passing the dozens of military camps, in the middle of nowhere you'll find the Tanks Battle Memorial of Abu Atwa. It was built to commemorate the tanks battle during the 1973-October war when the Israeli forces attacked Ismailia. The main piece of the memorial is a tank, which I believe was left behind by the Israeli army. There are also some remains of battle weapons.