There are in fact only 2, which kinda sucks. But there is a way around it, but some people insist it doesn't work for them. It did work for me so here's the idea. Follow this cycle at all times, do not change it up, it will lock up:
- 1st cast rod into the water by the west node, don't fish, just cancel and reel in your rod
- spearfish the western node til exhaustion
- now first cast rod into the water by the east node, don't fish, just cancel and reel in your rod
- spearfish the eastern node til exhaustion
- again cast rod and cancel at west and spearfish west etc...
I had this lock up maybe once or twice during the entire time. Just switch to botany or something, grab some nodes and start over. Or log off and try again later. But if you follow the cycle exactly you should be fine.