Are you going to spend a special Halloween? Why not come to a Halloween Party at Shanghai Leisure Boating Club Dianshan Lake site? You can enjoy luxury boating, interesting competitions, lottery, mask dancing, BBQ and Australian wines, etc. There will be a lot of fun!
• Time: 3:00 PM-7:00 PM, 28th, Oct
• Venue: Dianshan Lake Site of Shanghai Leisure Boating Club
• Cost: 600 RMB/ Adult, 300 RMB/ Kid. 400RMB for 2 Kids in a family.
(Shuttle bus, boating experience, BBQ, drinks and wines provided)

Why is it i suspect you don't even know the concept of "halloween"? Nothing you listed in the event description sounds anything Halloween-like, just another marketing piece. Please, if you are going to market something as a Halloween themed event at least have the decency to research a bit on what Halloween is, and plan something that actually sounds like more than a marketing event. Thank you.

ok, we will try to learn what is real halloween~
Thanks for your advice, man

应该先研究好再写的，真不够专业.

Thanks for your advice, man

Makes it sound like you are being sarcarstic. Even less professional.