Flowing River

Rivers can provide a convenient and fast way to travel. Encounters are less frequent, and the journey is less arduous. 

Terrains. Any; most river regions extend from at least one region into one or more other regions.

Tiers. It’s unusual (although not impossible) for rivers to be above tier 2.

Weather. 1–8 clear, 9–12 overcast, 13–16 rain, 17–19 mist, 20–25 snow. 

Vehicles. Adventurers move at the speed of their water vehicles.

Journey Activities. Adventurers gain advantage on Survival checks made to Hunt and Gather due to abundant fishing opportunities. Checks made to Hide Tracks automatically succeed, and those made to Track automatically fail. It is not possible to Busk.

Flowing River Exploring Tier 0

1–3 Aboleth thrall (monster)
4–6 Crab ^G  (monster) 
7–10 Crocodile  (monster)
11–22 Travel scenery  
23–25 Flumph  (monster)
26–28 Giant frog  (monster)
29–31 Giant toad  (monster)
32–34 Counterfeit goods  (exploration)
35–37 Gray ooze  (monster)
38–39 Kobold   (monster)
40–42 Merfolk  (monster)
43–45 Hail storm  (exploration)
46–48 Ochre jelly  (monster)
49–51 Pirate ( bandit variant)  (monster)
52–54 Poisonous snake ^G  (monster)
55–57 Haze  (exploration)
58–61 Quipper (monster)
62–64 Sahuagin  (monster)
65–69 Spark mephit  (monster)
70–73 Lost item  (exploration)
74–76 Swarm of poisonous snakes  (monster)
77–79 Swarm of quippers  (monster)
80–82 Will-o-wisp  (monster)
83–85 Public ceremony  (exploration)
86–99  Social Encounter  
100 Labyrinthine ravines   (exploration)

^G On an odd result, use the giant version of this creature instead.

Flowing River Exploring Tier 1

1–5 Aboleth thrall  (monster)
6–10 Black pudding  (monster)
11–20 Travel scenery  
21–25 Gelatinous cube  (monster)
26–30 Ghost  (monster)
31–35 Labyrinthine ravines  (exploration)
36–40 Kobold broodguard or kobold sorcerer  (monster)
41–45 Merfolk  (monster)
46–50 Pests  (exploration)
51–55 Merfolk knight  (monster)
56–60 Merrow  (monster)
61–65 Private property  (exploration)
66–70 Ochre jelly  (monster)
71–75 Pirate captain ( bandit captain variant)  (monster)
76–80 Thunderstorm  (exploration)
81–85 Sahuagin  (monster)
86–90 Will-o-wisp  (monster)
91–99  Social Encounter  
100 River rapids  (exploration)

Flowing River Exploring Tier 2

1–4 Bunyip  (monster)
5–7 Chuul  (monster)
8–17 Travel scenery
18–20 Ghost  (monster)
21–24 Giant crocodile  (monster)
25–28 Cursed temple  (exploration)
29–31 Giant water elemental   (monster)
32–34 Hydra  (monster)
35–37 Dense fog  (exploration)
38–39 Merfolk knight  (monster)
40–42 Merrow mage  (monster)
43–45 Green lake  (exploration)
46–48 Revenant  (monster)
49–51 Sahuagin champion  (monster)
52–54 Hail deluge  (exploration)
55–57 Scrag ( troll variant)  (monster)
58–61 Spell-warped chuul ( chuul variant)  (monster)
62–64 Marsh gas  (exploration)
65–69 Vengeful ghost ( ghost variant)  (monster)
70–72 Water elemental  (monster)
73–76 River rapids  (exploration)
77–79 Will-o-wisp  (monster)
80–82 Young river dragon  (monster)
83–85 Voracious pests  (exploration)
86–99  Social Encounter  
100  Sunspots  (exploration)

Flowing River Exploring Tier 3

1–5 Aboleth  (monster)
6–10 Adult bronze dragon  (monster)
11–19 Travel scenery  
20–24 Adult river dragon  (monster)
25–29 Champion warrior  (monster)
30–34 Chuul  (monster)
35–39 Caught in the crossfire  (exploration)
40–44 Marid  (monster)
45–49 Merclops ( cyclops variant)  (monster)
50–54 Merfolk knight   (monster)
55–59 Cursed waterway  (exploration)
60–64 Pyrohydra ( hydra variant)  (monster)
65–69 Roc  (monster)
70–74 Sahuagin champion  (monster)
75–79 Sunspots  (exploration)
80–84 Scrag ( troll variant)  (monster)
85–89 Storm giant  (monster)
90–99  Social Encounter  
100 Malfunctioning planar portal   (exploration)

Flowing River Exploring Tier 4

1–5 Aboleth  (monster)
6–14 Travel scenery  
15–18 Adult gold dragon  (monster)
19–22 Ancient bronze dragon  (monster)
23–29 Divine war  (exploration)
30–36 Ancient river dragon  (monster)
37–43 Ancient aboleth ( aboleth elite)  (monster)
44–52 God corpse  (exploration)
53–59 Dragon turtle  (monster)
60–66 Marid  (monster)
67–73 Killing cloud   (exploration)
74–80 Marid noble (elite)  (monster)
81–87 Storm giant  (monster)
88–94 Malfunctioning planar portal  (exploration)
95–100  Social Encounter