When you arrive at the market place there is a spot on your left containing some barrels and a crate. A small opening behind the crate is where you need to climb up to get the points. Easiest approach is to head north to the end and climb up the steps for the tea and coffee house east of the ATM. Head to the southwest corner and crouch/jump out. Hug the west wall while heading south to get the points. This will also put you in a position to disable one of the accoustic gunfire sensors though there is no point in doing so. (Conspiratorial nod to Jordon for the scoop.)

Enter the secret storage area on the boat in the waterways between the market district and Tonnochi Road. Its on your right if you enter the waterways from the area that leads to VersaLife and the Lucky Money Club. The secret is accessed by smashing the cardboard box and using the paper lantern shown below.

Exploration Bonus (20 pts.):

Enter the fisherman's house in the waterways. He is found by swimming south between the two barges in the north end of the waterways. From the bonus mentioned above, it would be on your left as you face the bow of the boat.

Exploration Bonus (10 pts.):

When you reach the flood filled portion of Canal Road turn right and swim east deep into the debris. As you reach the goodies this meager bonus is awarded.

Enter the secret part of the building located west of the police station in the market district. As you leave the helipad to enter the market district its on your immediate right.

Explore the vent shaft from the freezer behind kitchen at the Old China Hand bar in the waterways area.

Enter the vault located inside the police station in the market district.

Take the lift to the top of Maggie Chow's apartment building. Access is gained by passing the main entrance and entering through the gate at the back and then navigating some ladders to use a keypad atop an elevator. The code for the elevator can be found on a datacube on the seventh floor under renovation. (Thanks to Whimbrel for the tip.)

For reaching the room containing the Dragon's Tooth sword.

Open the weapon case containing the Dragon's Tooth Sword. Oddly, you earn this for opening the case, not for actually picking up the sword.

Enter the Lucky Money Club. This is progress?

Survive the MJ12 Commando attack after speaking with Max Chen at the Lucky Money Club. I guess character interaction covers the kind that happens at the end of a gun barrel. :-)

Enter the Quick Stop located on your left as you approach the door girl for the Lucky Money Club.

Enter the Luminous Path compound on the east side of the market district.

Get to the basement of the Luminous Path compound and find Tracer Tong's secret lab. Talk with him.