Monday I flew Allegiant Air in a Giant Seat, one of their First Class-sized seats up front, from Los Angeles to Honolulu.

Allegiant Air is a Las-Vegas-based low-cost carrier that survives by selling bundled hotel-air-entertainment packages, charging a fee for almost everything, and keeping its costs low.

It was a First Class-sized seat at an economy-class price.

Last week, I did a 2 day/1 night hike on the Great Wall of China near Beijing that included 10 miles of hiking on the Wall, several meals, transportation, lodging, and a massage. My brother and I paid $370 per person.

Hiking the Great Wall was one of my best travel experiences ever. The history, the scenery, the outdoor exercise, and spending time with my brother were a potent combination.

I went with Great Wall Hiking (which gave me no discount and doesn't know I'm writing this review), and I enjoyed the tour immensely.

I just arrived in Los Angeles after 10 hours flying Asiana First Class on its brand new A380. I booked my seat last month for 70,000 United miles (at pre-devaluation prices using this trick.)

This is a really important trip report because Asiana First Class is a true luxury product that is extremely easy to book with miles!

Award space on the Asiana A380 is wide open in Business Class and First Class between Los Angeles and Seoul, especially at the last minute.

Visa entry requirement change frequently. I will not update this post.

A few days ago, I hiked to Sai Wan Village and Sheung Luk Stream in Hong Kong on the advice of an American friend who'd done the hike last year.

A few days ago I flew from Honolulu to Guam in United economy and got myself five seats in a row, so I could sleep during the flight.

Even at 6'4", I only needed four consecutive seats for sleep. I raised the arm rests, collected a few pillows and blankets, and had some great sleep for a few hours after take off.

Yesterday, I flew a United 777-200 equipped with the carrier's latest entertainment concept: I could freely stream hundreds of movies and TV shows on my own laptop or United's iOS app.

This is the fifth installment of a round-the-world trip report that started here. We pick up in Hong Kong.

In late February, I flew into Hong Kong International Airport for a 23 hour layover that I spent in Macau. (Don't worry, I'm going to Hong Kong proper in a few weeks!)

I flew into Hong Kong in Cathay Pacific First Class and out of Hong Kong the next day in Cathay Pacific Business Class.