The Tribe of Eternal Smoke's territory is surrounded by: Water, WaveClan, and Tribe of Roaring Skies. The stream/river that seperates the middle of their territory is fairly hard to cross close to the ocean. The stream portion, between the lake and Roaring Skies is fairly shallow, and can be crossed easily by most.
WaveClan borders: Water, Eternal Smoke and TwilightClan, and Pointy Cave. WaveClan has permitted any who are visiting Pointy Cave to enter their territory, provided they don't steal prey. Most streams and rivers are capable of being crossed by their cats, however, for those either not of their clan, or who don't want to get their belly wet, there are usually either twoleg paths (bridges) going over the water, or decent sized stones across the water that are fairly safe to use. There is a twoleg nest within their territory, but so far, the twolegs have paid them little mind.
TwilightClan borders: WaveClan and The Tribe of Roaring Skies. A large twoleg nest is just outside of their territory, and the water that makes it's way into their territory provides no troubles getting around, however, only strong warriors are advized to cross.
Tribe of Roaring Skies borders: Eternal Smoke and TwilightClan. A portion of their territory juts into TwilightClan. All water in their territory is fairly shallow, and their land is little more than moorland.