The Pier becomes available at level 4. To restore the Pier, tap on it and select Repair. Repairing it requires special items: hammers and nails.
Once the Pier is restored, the Task Board and Trading Boat become available.
You can tap on the task board and select a task from the list that you want to complete. Please note that different clients can give different tasks. The leaflets for these tasks are different colors. Each client's task chain consists of 7 tasks.