Can anyone improve these paragraphs, please?

Can you please check the grammar?

With increased influx of tourists to Sarawak, we not only see the solitary backpacker or senior citizen holidaying here, but also families, younger touring groups, and even students on school trips.

If combine increased travel and itinerary awareness via the internet, tourists would expect more than a sleek cultural show before retiring to their five-star hotels.

The meaning of the underlined part is not clear at all. You need to say in another way.

Clive

Why we don't put down 'the increased influx of..'? I thought it was more like THE+OF structure. You could certainly say 'the' to make the reference more specific. 

Can we write Having combined increased travel and itinerary awareness via the internet, tourists would expect more..?
Yes, you can. But  why not use a more dynamic, active and simpler form of grammar? eg
Now that they are travelling more, and are more aware of their itinerary due to the Internet, tourists expect more than a sleek cultural show before retiring to their five star hotels.

Best wishes, Clive