It is impossible to cross overland the border between Algeria and Morocco, it has been closed since 1994 following a political dispute.
Besides taking the plane, the only other option to go from Morocco to Algeria would be to take the ferry with a change in Spain.
Crossing on the south via Mauritania is strongly discouraged since the Sahara region is currently not safe.
Read the Wikipedia page Algeria-Morocco relations to get more information.
Machame Route Kilimanjaro climbing, also known as “Whiskey” route which means challenging route. Climb Kilimanjaro 6 day, Machame the best route. It is the second most popular and one of the most scenic routes on the mountain. Also the tour will take you to Lake Manyara and Ngorongoro Crater.