how to get to Xili Lake Resort from Shenzhen Shanshui trends Louhu hotel?

I will visit Shenzhen with my family (4 person) and stay at Shanshui Trends Louhu hotel. Could you please let me know
1. how to get to Xili Lake Resort from Shanshui trends Louhu hotel?
2. How long is the travelling time if I take public transport?
3. As we will travel in a group of 4, will it be cheaper and more quicker if I take taxi from the hotel to the Xili Lake Resort