What is the best from Rambler Oasis Hotel in Tsing Yi to Kowloon?

You can go to Tsing Yi Station to take MTR Tung Chung Line to Kowloon. Well, what's your specific destination in Kowloon area?

From Kowloon I'm planning to go to Yau Ma Tei and Mong Kok? Can I walk from Kowloon station to Yau Ma Tei and Mong Kok ( Night Market). Thanks!

Hi, from Kowloon to Yau Ma Tei, it is about 3.5km, so it may be a little far to walk there. I suggest you take Kowloon Bus No. 42a or 81 to your destination in about 15-10 min.
To the Night Market, you can surely walk there 'cause it is only about 1km between the two places.