Hotu Cave has an approximate size of 30 m × 20 m (98.4 ft × 65.6 ft). The site produced pottery shards, stone tools and material that could be radio-carbon dated. Twenty-two samples were dated and attributed to eight different cultures. The 2 earliest cultures, present at around 9,910 to 7,240 years BCE are assumed to be seal hunters and vole eaters. The bones of a dog have been cited as an example of exceptionally early animal domestication. Pre-Neolithic finds date to around 6,120 years BCE.