Tipping guidelines for mountain trekking adventures can vary depending on the destination and local customs. Here are some general tips to consider:

1. Guides: It’s customary to tip your trekking guides. A common guideline is to budget around $10-$30 per day per guide, depending on the size of your group and the level of service provided.

2. Porters: Porters typically carry heavier loads during the trek. A suggested tip is around $10-$20 per day per porter, again depending on their responsibilities and the duration of the trek.

3. Cook and Support Staff: If your trek includes a cook or additional support staff, consider tipping them as well. An appropriate amount could range from $10-$25 per day per staff member.

4. Group Tip: Some trekkers prefer to pool tips and give a lump sum to be distributed among all crew members. This can simplify the tipping process and ensure fairness.

5. Quality of Service: Adjust your tips based on the quality of service and the effort put forth by the staff. Exceptional service may warrant a higher tip, while poor service may warrant a lower tip or feedback to the trekking company.

6. Currency: Tipping is usually done in the local currency, so it’s helpful to have small bills or local currency denominations available for tipping.

7. Discuss with Trekking Company: Before your trek begins, clarify tipping expectations with your trekking company or guide to ensure you understand local customs and expectations.

8. Gratitude: Tipping is a way to show appreciation for the hard work and dedication of the trekking crew who contribute to the success and safety of your adventure.

These guidelines can help you navigate the tipping process during your mountain trekking adventure. Adjustments may be necessary based on individual circumstances and local practices.