Trekking poles are usually made of light, durable materials like aluminum or titanium alloy and they can be telescoped whereas walking poles are often made of natural materials like wood.

You can find out what kind of features you need or dont need by learning all the types of trekking poles here-
http://www.trekkingpolesguide.com/gu...king-poles.php

Not sure how challenging the hike would be since the trekking poles are on the requirement list. Usually it doesnt matter what kind of trekking poles you bring.

This might be a late reply for your trip. Hopefully it can be useful to you in the future....