What is the best way to travel from Jiaxing or Tongxiang Station to Taihu International Golf Club?

The golf club is located at North end of Lake Taihu or more specifically RSun the Lakefort Hotel on Huanshan Rd East Mashan Binhu District.
Please advice! Your help would be much appreciated. Believe me I tried searching on the internet & calling the RSun Lakefort hotel for an answer!
At a minimum, let me know a reasonable taxi fare for a family of 4 (including 2 kids) with luggage. I assume train/taxi combination is not convenient or worth the trouble. Please help!