This is outside the "The Shoppes at Marina Bay Sands" ( http://www.marinabaysands.com/Singapore-Shopping/ ), the long and low shopping arcade in front of the iconic hotel. The casino is here, not in the hotel. Half of the arcade is covered with a curved glass roof. These guys were spot-cleaning, and moved off after spraying and scrubbing a few panels, not doing a wash of the whole area. Keeping it clean must be a full-time job.
It's not so clear in this small version of the photo, but the blue safety harnesses that they are wearing are clipped to the rail, with two separate ropes. The two gray diagonal poles that stick out at the top are long-handled brushes, not a safety guard. You can also see the high-pressure hydraulic hoses that power the thing, hanging out near the joints, if you're interested in that kind of thing.
- D7000, 18-105mm f3.5-5.6
- At 92mm, f8, ISO 100, 1/125 seconds
- Aperture Priority, center-weighted metering, auto white balance
- Picasa: Crop, auto contrast, fill light