From this page you will how to fish!
In rohan, fishing is one of the main source of crones and extraordinary items. How do a player "fish"?
1st : a player can only fish when he or she is at the fishing hole located at the towns (fish icon).
2nd : a player must be facing the pond to begin.

Sample image <- click me to view image

3rd : a player must double click his/her fishing rod at his/her inventory to begin fishing.
4th : a player must have a "bait"!

what is a bait in rohan?
bait's are acquired in monsters, for example, if you are fighting with a monster, then once you kill it, it has an item dropped, it may be crones,an accessory, rare items (SES, SRS, glasses) or items. items such as a weapon,armor or shield are considered as bait, but be careful in choosing your bait, sometimes your bait are rare and sometimes it's a trash so you need to bait it.

5th : double click on the "bait" and press start.
here is a simple guide in order for you to know what is what.

legend in fishing <- click me to view image

6th : repeat step 5 until you get a rare item or a good selling price item

note:

• bait's must not exceed selling price by 16,700 crones.
• ranks of the fish depends on the selling price of the bait.