From publisher blurb: Create Water Monster Lairs in Minutes! Enjoy quick, easy templates to spice up encounters, travel, and especially boss fights with aquatic creatures, fey, hags, merfolk, and water elementals, as well as for staging battles in coastal areas, flood zones, fog, lakes, rivers, and oceans. In this extreme template pack, you get environment rules as well as new monsters and treasure ideas for: Fog of War (magical terrain) Beach (Rocks or Sand) (nonmagical terrain) Flood (nonmagical terrain) Rain (Light or Heavy) (nonmagical weather) Rapids (nonmagical terrain) River Crossing or Ferry (nonmagical terrain) Rough Sea Voyage (nonmagical weather) Sand Dunes (Coastal) (nonmagical terrain) Waterfall (nonmagical terrain)