IAR, some more to add to your list
Route 117
Pokemon:
- Old Rod: Goldeen (lv5), Magikarp (lv5),
Route 118
Pokemon:
Trainers:
- Fisherman Wade: Carvanha (lv17, rough skin)
Items:
- Heart Scale: Rock on beach near fisherman (dowsing)
POI:
- Rock/Mountain at the top right part of the beach has a small hole, likely a secret base.
Route 117
Pokemon:
- Old Rod: Goldeen (lv5), Magikarp (lv5),
Route 118
Pokemon:
Trainers:
- Fisherman Wade: Carvanha (lv17, rough skin)
Items:
- Heart Scale: Rock on beach near fisherman (dowsing)
POI:
- Rock/Mountain at the top right part of the beach has a small hole, likely a secret base.