Recommended scheme:
209 → B697 takes about 40 minutes/10.9 km.
Caitian Village ① Station
Take bus No.209 at 10 station and get off at Zhuzilin (futian bus station) station.
Take B697 at Station 9 and get off at Economic Crime Investigation Bureau Station.
Walk 90 meters to Shenzhen Children's Paradise (get off and walk back).
Option 2:
Route 59 → B697 takes about 40 minutes/1 1.0 km.
Caitian Village ① Station
Take bus No.59 at 12 station and get off at Yuanboyuan Station.
Take B697 at the seventh stop and get off at the Economic Crime Investigation Bureau.
Walk 90 meters to Shenzhen Children's Paradise.