It is actually possible to practice taekwondo first and then learn karate. After all, the technical system of Taekwondo is originally based on karate.
The following are extremely real training places in Nanjing.
1, Dojo of Nanjing Branch Headquarters (full name Dojo)
Dojo Address: National Fitness Center, Zhongshan East Road, Xinjiekou 10 Floor.
Course arrangement: Monday and Tuesday 15: 30-2 1: 00, Saturday 18: 30-20: 00.
Sunday 10: 00- 12: 00, 15: 00- 18: 00.
2. Longjiang Dojo
Dojo address: 1st floor, Hall 2, Longjiang Gymnasium (South Gate of Gymnasium).
Course arrangement: Tuesday, Friday and Sunday 19: 00-20: 30.
3. The first sports Dojo
Dojo Address: No.2 1 F, Pacific Department Store (Jianwei Building), Shanxi Road, Sports and Fitness Center.
Course arrangement: Saturday10: 00-1:30, Sunday 14: 30- 15: 30.
4. Baiku Dojo
Dojo address: Baiku Fitness Center, 3rd floor, Wuxing Electric Appliance, Xinjiekou.
Course arrangement: Wednesday 20: 00-2 1: 00.
5. Henghai Dojo 1 (special kindergarten class)
Dojo address: Henghai International Early Education Institution on the left side of a kindergarten gate in Baixia Road.
Course arrangement: Tuesday 18: 00- 19: 00, Saturday 18: 30- 19: 30.
6. Henghai Dojo 2 (special class for children)
Dojo address: East of Palace Square in Ming Dynasty, headquarters of Henghai Early Education Institution.
Course arrangement: Tuesday 17: 30- 18: 30, Sunday 16: 30- 17: 30.
7.CTF Dojo
Dojo Address: CTF International Fitness Center, 7th-8th Floor, Trade City
Course arrangement: Monday 20:00-2 1:00, three nights 19:40-2 1:30.
8. Vanke Dojo
Dojo address: Vanke Golden Home Fitness Club, No.9 Mochouhu East Road, outside Shuiximen.
Course arrangement: Saturday and Sunday 15: 00- 16: 00.
I hope my answer can help you!