From Alexandria to Siva Oasis?

There is no direct night bus from Alexandria to Siva Oasis, but there are buses from Alexandria that stop (at night) at marsa matruh (8 hours and 7 hours respectively). It takes at least 3 days to go back and forth, and it depends on the length of stay in Siva.

If you have a tourist visa (assuming you have a China passport), you can't apply for visa extension. However, you can apply for a re-entry visa, and you need a photo once you pay 17 angstrom pounds (the visa fee is 13.1 pounds), which is desirable on the same day, but you must go and get it when you open the door in the morning and ask to come back at 2 noon or no later than 5 pm. The Immigration and Visa Office Building is directly opposite the Egyptian Museum (middle lawn).