Beza Everfrost Caves
This rod is in the secret caves accessed from the hole in the Eastern branch of the Everfrost ice river. The hole for the caves is located at +2420, -4060.
The rod is located at 3 on this map.
This was the first rod that I obtained in my early 20s and I found it entirely by accident while exploring one day. I did not need Enduring Breath to swim to the caves, as I have always tried to keep my swimming skill maxed out. Max swim skill at level 23 was enough for me to get there without drowning.
There are 3 Icebone Skeletons guarding this rod. I had a friend with me at the time, and we were able to pull them and kill them easily.