Archipelago at the river's mouth

I have a request addressed to you from Mr. Mercator. When investigating islands that form near river mouths, you apparently impressed him.
It looks like you might be sent again to the ends of the earth... Will you accept?

Type	Adventure
Difficulty	⭐⭐⭐⭐⭐⭐⭐⭐⭐
Required Skill	Recognition 7 Geography 9 Mon-Khmer Lang 1
Source	Amsterdam Adventure Mediator
Prerequisite	Island that Divides a Giant River
Gold Reward	500,000 Đ
Gold Advance	50,000 Đ

Details

1-2. Amsterdam

Mercator

3. Gia Dinh

City Official

4. Gia Dinh

Barkeep

5. Gia Dinh

Seafarer - Buy him a drink

6. Gia Dinh

Merchant

7. Gia Dinh

Resident

The Gulf Of Thailand

Discovery

Mekong Delta

Note

• You need to have the port permits required to access each location above.
• If you are unsure of the location of the next NPC in town, order a drink in a Tavern in the same town.
• Recognition

can be 2 levels below.