It seems like the destination of this portal is obvious, but actually you can choose any place you like with your wrench.
Hellgate price in Growtopia: sells for about 1 WL (median of 151 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: OP0, ALSIY, FYEI, WUEHH, EWOY