Multi-factor trek search

Currently we can filter through treks based on one factor. Website can have a feature to search a trek based on multiple factors like difficulty, time of the year, type etc.

Additionally, would be a very unique feature if you could add in a “date” search too. Eg: if someone wanted to be on a trek on a special day (say summit on their birthday) having such “date search” feature would be a unique addition to the trek selection experience.