Krakatoa

The original Krakatoa took out an island in 1883. This one's a bit smaller. Light it, step back, and a column of gold and silver erupts out of the ground.

It broadens as it goes, picking up crackling lava colours, and stays bright the whole 80 seconds. Most big fountains taper off in the back half. Krakatoa doesn't.

The Krakatoa firework packs 500g of pyro from Primed Pyrotechnics. That's the legal maximum for a Cat F3 fountain, and the biggest one we stock. Needs firm, level ground and 25 metres clear in front of the audience. A paddock, a field edge or the bottom of a long driveway is what this fountain wants. If your plot is tighter, our F2 fountains run smaller and only need 8 metres.

If anything, "fountain" undersells it.