You can take the subway from Tangkeng to Dameisha according to the following steps:

1. Take Metro Line 3 (Longgang Line) at Tangkeng Station.

2. Get off at Hu Yong Station.

3. Walk about 220m to Hu Yong subway station 1.

4. Take M3 14 and get off at Harbour Building Station.

5. Walk about 330 meters to the Harbour Building Station.

6. Take M 196 and get off at the bathing station.

7. Walk about 270 meters to Dameisha Haitian Railway Station.

The above are the ride steps from Tangkeng to Dameisha subway for your reference. Please consult the local subway operation department for the specific ride plan.