Hello, my players want to travel to the floating island of Paraxadon, to see the city in the clouds. I'm making my own map. I was thinking of using this mapfrom 2-minute table top. But decided to use the Devil's Tower (from Close Encounters of the 3rd Kind movie) instead. I got a picture, then converted it into line art.
2 Minute table top
https://2minutetabletop.com/anvil-rock-fantasy-battle-map/

My converted Devil's Tower A
https://postimg.cc/S2RC01Sp

Devil's Tower Tower B
https://postimg.cc/yDTZDCWH

I was thinking of using these assets.
https://www.drivethrurpg.com/en/product/517071/minish-cartography-digital-collection-packs-0-to-30?src=also_purchased
or
https://marketplace.roll20.net/browse/set/19209/regional-city-overworld-isometric-maps-and-objects-pack
Or should I draw my own?
 

The distance from the mainland to the Floating Island? Looks like around a hundred miles. So I'll try and make that a tension filled experience. Floating in the blackness of space, afraid to fall off into the dark. 
On the Island itself I'm trying to find sources and inspiration. So of course I go to 1950's B movies, and the classic Amazon Women on the Moon parody movie. Should I leanin to the cheese? 
So it's supposed to be an adnaced civilization. How do i portray it. A beautiful idealic city? How haughty should i make it's citizens? Treat male characters? 
For them returning to the mainland I thought I'd have them strike a deal with the rulers. Go back on a carrack sized skyship.

I wanted to use the portal in the new Oblation Slab adventure. As a surprise side quest to the floating island. But it looks like the one player really just wants to try flying there. An NPC that is now a PC is from there as well. Andromeda from the pre generated character supplement. I could also add a portal stone in Cape Valencia, if they go to the Thousands Eyes adventure.

My players want to try and cross the Black Gulf and land on the Floating Island. Any advice on how to handle that? I am thinking of some encounters with Nightgaunts at least. 
They would take a ship to the edge of the dangerous waters. Then try and fly their Amazon Skyship over the falls. Before that I was thinking an encounter with a shipwreck city stuck at the edge. The volcano islands at the edge. and then crossing the rift itself. 

Thanks!
I have another question. My players didn't kill the Hyperborean king in the Desert Dunes adventure. Since awakening, he has rebuilt his old tower in the destroyed coastal city. Planning on rebuilding the rest of his kingdom. Possibly using the green diamond mines as a source of income. He's partial to the PCs cause they freed him and might need them to transport those diamonds for sale in Khromarium. But there's already some contention because he's pro-slavery. Seeing as he's old school Hyperborean who still sees the races of man as inferior. Am I correct in using that interpretation?  
 

During their Desert Dunes adventure. My players picked up some ancient coins in Cape Valencia. 
From the shrine of Apollo. Now one of my players is a Paladin of Apollo. Upon returning to Khromarium he tithed them to the temple. But kept some. One idea my players came up with was to use the coins especially when they do good deeds like giving alms to the poor.  His NPC girlfriend, the Paladin of Artemis (Andromeda from the pre-generated PCs supplement) said she was jealous that she didn't have silver coins of Artemis to do that as well. To which the players were like,: "Then why don't you just start making them? In fact, why don't we start making more modern coins of Apollo?" 
So my question is, have I started some sort of religious hullabaloo? 
Are there clerics of Xathoqqua that will get irate at this? Do they control the minting of coins exclusively?  Is their religion as lazy as their god? Will they let it slide? Or will brawls and clashes start occurring? If they play the Thousand Eyes of Thaumagorga and recover even more coins, the statue, and especially the Sacred Flame. What could happen if they move that to Khromarium? To the Temple. Or was there some lighthouse in the bay? Or if they go crazy and build the tallest tower in town? What do you all think?

Ooh yeah that sounds awesome. A black disruption crystal. What other powers could it have? Localized anti-magic field? Though I think I'll nerf it a bit by having the crystal crack when you remove it from the other crystals it's disrupting. Oh wait, maybe I'll have it become a radiation grenade. Hmmm, how long should the shutdown last? 3 days? A week?

Yup. I was thinking a fist size one would do that. Some might be basketball sized. I'd say those are good for 50 miles.
Was also thinking of what could disrupt the crystals power. Like a sabotage device villians could use to incapaciate the skyship for a while. 

Sounds a lot like the Kryptonite conundrum. Needing to think up a new color for the next issue, and whatever wacky hijinks you want it to cause.
For the orange crystals, I was thinking that a head-sized chunk could power the Amazon Skyship for a week. But it would fly at half speed, and not be able to power the laser crossbow at all. Being too high energy. Orange crystal being more intended for powering machinery. 

Ha! Good point. Will have to think up shenanigans to pull like that.
Also, is the population too high? Khromarium is the only city so far with 30K+ people. 
So should I bring it down to about 20K-18K? Explain that it's an up-and-coming settlement that people are migrating to. Because it's a defensible location, with resources that settlers and sponsors from Khromarium, the Vikings, and Kelts want. That and Khromarium wants to unload some of its poor and homeless population to.