WARNING/DISCLAIMER
This guide was made by me 5 years ago and has since been removed from the forums.
I am bringing it back into this space today to share my technique with you all.
Whilst the method of getting to Zulrah has changed, the method in the video is the same as it was 5 years ago.
To get to Zulrah today, travel to Zul-Andra via the Bosses teleport in your spellbook, then board the ship to the east.
Some things to note:
Add Zulrah scales to Antidote++ to make anti-venoms (Req. 87 )
I used void in this for the accuracy bonus, and it makes it a small switch.
Fire Surge (Req. 95 ) recommended if you do not own a trident, but trident will increase killing time monumentally.
If you feel as though any more information should be added to this guide, please let me know and I may edit accordingly.