Mera Peak is considered to be a moderate to challenging climb, with some steep and rocky sections requiring a good level of physical fitness and technical climbing skills. It is recommended for experienced trekkers and climbers who have already acclimatized to high altitude. 

The climb to the summit of Mera Peak takes around five to six days, depending on the route and pace of the group. The climb is followed by a trek back to the starting point, which takes around four to five days. 

Although previous climbing experience is not a requirement to climb Mera Peak, it is recommended to have some experience in high altitude trekking and basic mountaineering skills. It is also important to be in good physical shape and have a good level of endurance. 

It is highly recommended to hire a local guide for the climb, as they are knowledgeable about the route and can provide assistance in case of any emergencies. Porters can also be hired to carry your personal gear, which can make the climb more comfortable and enjoyable. 

It is recommended to spend a few days acclimatizing to the high altitude before attempting the climb. This can be done by trekking to lower altitudes and gradually increasing the elevation. Proper acclimatization helps to reduce the risk of altitude sickness.
 

During a Mera Peak climbing expedition, you can expect to eat a variety of local foods, such as: 

Dal bhat: This is a traditional Nepali dish consisting of rice and lentil soup (dal) served with vegetables and meat. 
Momo: These are steamed dumplings filled with vegetables or meat. They are a popular snack in Nepal. 
Thukpa: This is a Tibetan noodle soup with vegetables and meat. 
Sel roti: This is a type of fried bread made from rice flour. It is often served as a snack. 
Yak cheese: Yak cheese is a local specialty in the Himalayas. It is made from the milk of yaks and is often used in cooking. 
Tea: Tea is a staple in Nepal, and you can expect to drink it frequently during your climbing expedition. It is typically served with milk and sugar. 

It is also common to eat a variety of dried meats, such as jerky, during a climbing expedition. These can provide a convenient source of protein and can be easily stored and carried on the mountain.

During a Mera Peak climbing expedition, you can expect to stay in a variety of accommodation types. These can include: 

Tea houses: These are basic lodges that are found along the trekking route, usually located in villages. They usually have a dining area, as well as basic rooms with twin beds, blankets, and a shared bathroom. 
Tented camps: On the higher sections of the trek, tea houses may not be available, so you will need to stay in tented camps. These are typically set up by the expedition team and include small tents for sleeping, as well as a dining tent and toilet tent. 
Base camp: During the actual summit attempt, you will likely stay in a base camp, which is a large tented camp set up at the foot of the mountain. Here, you will have a place to sleep, eat, and relax before and after your summit attempt. 

Overall, the accommodation during a Mera Peak climbing expedition is fairly basic, but it is comfortable enough to provide a good night's sleep and a warm place to rest after a long day of trekking.

There are several permits required for climbing Mera Peak in Nepal: 

Nepal Trekking Permit: This permit is required for all trekkers entering the restricted areas of Nepal, including the Solu-Khumbu region where Mera Peak is located. The permit is obtained from the Department of Immigration in Kathmandu or online through the Nepal Tourism Board website. 

Sagarmatha National Park Permit: Mera Peak is located within the Sagarmatha National Park, so all climbers will need to obtain a park permit. This permit can be obtained from the Department of National Parks and Wildlife Conservation in Kathmandu or online through the Nepal Tourism Board website. 

Mera Peak Climbing Permit: In addition to the Nepal Trekking Permit and Sagarmatha National Park Permit, climbers must also obtain a separate climbing permit for Mera Peak. This permit can be obtained from the Nepal Mountaineering Association (NMA) in Kathmandu or through a licensed trekking or climbing company. 

TIMS Card: All trekkers in Nepal are required to have a Trekkers' Information Management System (TIMS) card, which is obtained from the Nepal Tourism Board or a licensed trekking or climbing company.

Hiring a guide and porter for a Mera Peak climbing expedition is highly recommended, as they have the necessary knowledge and experience to ensure a safe and successful climb. 

Guides are trained professionals who lead the group and provide information about the route, weather, and other important aspects of the climb. They are also responsible for ensuring the safety of the group, and can provide first aid and other assistance as needed. 

Porters are responsible for carrying the group's gear and supplies, and can provide support in setting up camps and preparing meals. They play a crucial role in the success of the climb, and should be treated with respect and appreciation. 

It is important to hire reputable and experienced guides and porters, as they can greatly impact the overall experience of the climb.

The costs and expenses for Mera Peak climbing vary depending on the route taken, the duration of the climb, and the level of comfort desired. Some of the potential costs and expenses that may be incurred include: 

Permits: To climb Mera Peak, you will need to obtain a climbing permit from the Nepalese Government. The cost of this permit is around $250 per person. 

Guides and Porter Fees: You will also need to hire local guides and porters to assist you with the climb. The cost of these fees will depend on the number of people in your group and the duration of the climb. 

Equipment: You will need to purchase or rent certain equipment for the climb, such as a climbing harness, carabiners, and crampons. The cost of these items will depend on the quality and brand you choose. 

Flights and Transportation: To get to the starting point of the climb, you will need to fly to Kathmandu and then take a local flight or jeep ride to the starting point in Lukla. The cost of these flights and transportation will depend on the route you take and the time of year you are traveling. 

Accommodation: You will need to pay for accommodation during the climb, either in tents or in local lodges. The cost of accommodation will depend on the level of comfort desired and the duration of the climb. 

Food and Drink: You will need to pay for food and drink during the climb, either by purchasing supplies in local villages or by hiring a cook to prepare meals for you. The cost of food and drink will depend on the quality and quantity desired. 

Insurance: It is strongly recommended that you purchase travel insurance to cover any potential medical or emergency expenses that may arise during the climb. The cost of insurance will depend on the coverage desired and the duration of the trip.
 

Climbing boots: It is important to invest in a good pair of climbing boots that provide good support and protection to your feet. 

Crampons: These are metal spikes that are attached to the bottom of your climbing boots to provide traction on icy and slippery surfaces. 

Ice axe: This is a crucial tool for ascending and descending steep slopes and glaciers. It is used to anchor yourself in place while climbing or to self-arrest if you slip. 

Harness: A climbing harness is essential for attaching yourself to the climbing rope and securing yourself to the mountain. 

Carabiners: These metal loops are used to connect your harness to the climbing rope and to secure yourself to the mountain. 

Slings: These are long loops of webbing that are used to create anchors and to extend the length of your climbing rope. 

Rope: It is essential to have a good quality climbing rope for securing yourself to the mountain and belaying your climbing partners. 

Climbing helmet: A helmet is important to protect your head from falling debris and accidents while climbing. 

Warm clothing: It is important to pack warm and insulated clothing, such as a down jacket, thermal layers, and gloves, as the temperature can drop significantly at high altitudes. 

Water and food: It is important to bring plenty of water and high-energy snacks to sustain yourself during the climb.