San Francisco's Museum of Ice Cream has a sprinkle pool and a Pop Rocks cave - here's what it's like

Melia Robinson/Business Insider

San Francisco is holding onto summer at the new Museum of Ice Cream, a colorful Instagram paradise where visitors eat ice cream and snap selfies amidst shrines to the frozen treat.

The wildly popular pop-up exhibit sparked a social-media mania during its temporary runs in Los Angeles and New York earlier this year. San Francisco is the largest of the three exhibits and features a sprinkle pool, Pop Rocks cave, and a psychedelic rainbow room.

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After selling out the first batch of tickets in 18 minutes, Museum of Ice Cream extended its run through February 2018 - but good luck getting tickets. Those also sold out lightning-fast. Scalpers on Craigslist are selling tickets, originally priced at $38, for as much as $135 a pop.

We got the chance to visit Museum of Ice Cream before opening. Take a look inside.