The Everest Base Camp Trek is a popular trekking route in the Everest region of Nepal, which takes you to the base camp of the world's highest peak, Mount Everest (8,848 meters/29,029 feet). While the standard duration for this trek is around 12 to 14 days, I'll provide you with an itinerary for a 14-day trek to Everest Base Camp:

Day 1: Arrival in Kathmandu Arrive in Kathmandu, the capital city of Nepal. Rest and prepare for the trek. You may use this day to explore the vibrant streets of Thamel, a popular tourist area.

Day 2: Flight to Lukla, Trek to Phakding (2,652m/8,700ft) Take an early morning flight from Kathmandu to Lukla, a small mountain airstrip. Start your trek towards Phakding, a scenic village situated along the Dudh Koshi River.

Day 3: Trek to Namche Bazaar (3,440m/11,286ft) Continue your trek along the Dudh Koshi River, crossing suspension bridges and passing through beautiful forests. Reach Namche Bazaar, a bustling Sherpa town and the gateway to the Everest region.

Day 4: Acclimatization Day in Namche Bazaar Spend an extra day in Namche Bazaar for acclimatization. Take a hike to Everest View Hotel or explore the local markets and monasteries.

Day 5: Trek to Tengboche (3,870m/12,694ft) Trek through rhododendron forests and enjoy views of Everest, Lhotse, and Ama Dablam. Reach Tengboche and visit the famous Tengboche Monastery, one of the most significant monasteries in the region.

Day 6: Trek to Dingboche (4,360m/14,300ft) Descend through forests and cross the Imja Khola before ascending to Dingboche, a beautiful village nestled in a valley.

Day 7: Acclimatization Day in Dingboche Spend a day in Dingboche to acclimatize. Take a short hike to Nagarjun Hill or simply relax and enjoy the stunning mountain views.

Day 8: Trek to Lobuche (4,940m/16,207ft) Resume the trek, passing through Dughla and Khumbu Glacier. Reach Lobuche, a small settlement located near the base of the Khumbu Icefall.

Day 9: Trek to Everest Base Camp (5,364m/17,598ft), return to Gorak Shep (5,164m/16,942ft) The highlight of the trek! Trek to Everest Base Camp, following the Khumbu Glacier. Spend some time at the base camp and soak in the incredible surroundings. Return to Gorak Shep for overnight stay.

Day 10: Hike to Kala Patthar (5,545m/18,192ft), Trek to Pheriche (4,240m/13,910ft)
Early morning hike to Kala Patthar, a famous viewpoint for stunning sunrise views over Mount Everest and the surrounding peaks. Descend to Pheriche for overnight stay.

Day 11: Trek to Namche Bazaar
Continue the descent through beautiful landscapes, crossing several suspension bridges. Reach Namche Bazaar for overnight stay.

Day 12: Trek to Lukla
Trek back to Lukla, enjoying the last views of the mountains and reflecting on your trekking adventure.

Day 13: Flight from Lukla to Kathmandu
Take a scenic flight from Lukla to Kathmandu. Rest and relax in Kathmandu, and take this opportunity to explore more of the city.

Day 14: Departure
Depart from Kathmandu with wonderful memories of your Everest Base Camp trek.

Please note that this itinerary is a general guideline, and it's important to be flexible during the trek due to weather conditions, individual fitness levels, and acclimatization needs. It's recommended to hire a licensed guide and trek with a reputable trekking agency for a safe and enjoyable experience.