Giang Dien Waterfall Park is a large, tranquil park about 45km outside HCMC. It has a waterfall that you sit/swim in, deck chairs, shade canopies, bars, restaurants and walking paths. It's a calm place that is great for a city escape. The 12 bus SOMETIMES goes there from the Ben Thanh market bus station (see the FTF log for more info!). The park DOES have an entrance fee of around 80,000VND.
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The cache itself is a small tupperware container, big enough for a one or two trackables. Please bring your own pen and be careful to avoid muggles. I no longer live in the country, so community maintenance on this cache would be great. I'd be eternally grateful if you brought a replacement baggy / logbook in case this cache needs a bit of help.