Vault of Magic looks good, but ugh that wilderness one looks like dogshit.
"With this supplement, any Dungeon Master can overcome the tedium of cross-country travel." Yea, its tedious and a DM worth their salt shouldn't need this -- and in the random scenario they would it should be easy to do on the fly with minimal distraction from the plot.
Needing to have perception checks, bonus actions, roll initiative etc for a flash flood and then assigning bludgeoning damage to it? DC perception checks of 13, 16, and 18?? Surprise rolls? Holy mechanics overkill of boring fuckery. Then a death saving throw for drowning? I'd physically body slam my GM if he killed a character of mine with some random shit like this.
And 65 dollars for a fucking hardcover of this with shipping? Doesnt seem to add anything aside from maybe the monsters.
Remember that time I made the save against the Lich's feeblemind and then saved the party with a mass heal? Yea that was ok.....but man, when I saved to keep from drowning after I failed a Dex check in the randomly assigned thick mud on table 103a for environmental hazards in the rainy season and then fell into that lake and had another giant penalty check because of full plate --- WHEW that shit was awesome. To each their own I suppose.