After leaving Mina, the pilgrim heads toward Arafah.
Arafah is a desert location approximately nine miles from Makkah. Pilgrims don't have to get crowded on the Mount of Rahmah (Mountain of Mercy). They can stay in any place WITHIN the boundaries of Arafah.
Prayer Upon Entering Arafah
O Allah! Forgive my sins, help me repent to you, and grant me all that I beseech of You. Whenever I turn, let me see goodness. Allah be praised! All Praise is due to Allah! There is no deity except Allah! And Allah is The Most Great.