Don't you have enough time for a long trek to the Everest base camp? Or Don't you want to trek in the high Himalayan altitudes? But, you might have the desire to reach the base camp of the world's highest mountain and see it from very close. You can fly on a helicopter there and you do not have to charter it. You have other people to join the flight.
If you are able to trek in the mountains and have enough time to explore, trekking in the Everest Region is the best. You can also experience both an adventure trek and a helicopter flight both, which is the Everest base camp trek with a return by helicopter to Kathmandu. The Everest base camp trek is the most famous trekking destination in the region, and the Everest View trek is the shortest itinerary, which just goes up to Tengboche Hill and then returns. The Everest High Passes and Everest base camp Gokyo Lakes treks are adventure trails.
Gokyo Lakes trek is the alternate trail to the base camp, which offers magnificent views of the high mountains, tranquil lakes, and massive glaciers (Ngozumpa). You can even go over Renjo La Pass after the Gokyo Lakes and Gokyo Ri visit.