This tortoise is half the height of a human, and has a domed shell, leathery skin, and a long neck.
Giant tortoise CR 1
XP 400
N Medium animal
Init –2; Senses low-light vision; Perception +7
Defense
AC 16, touch 8, flat-footed 16 (–2 Dex, +8 natural)
hp 22 (3d8+9)
Fort +8, Ref +1, Will +2
Offense
Speed 10 ft.
Melee bite +4 (1d6+3)
Statistics
Str 14, Dex 7, Con 16, Int 2, Wis 13, Cha 9
Base Atk +2; CMB +4; CMD 12 (16 vs. trip)
Feats Endurance, Great Fortitude
Skills Perception +7 (+3 for sound–based checks); Racial Modifiers –4 Perception for sound–based checks
SQ buoyant, shell, slow and steady
Ecology
Environment warm deserts or islands
Organization solitary, pair, or herd (6–12)
Treasure none
Special Abilities
Buoyant (Ex) A tortoise that fails a Swim check by 5 or more does not sink.
Shell (Ex) As a move action, a tortoise can pull its extremities and head into its shell. It can't move or attack as long as it remains in this state, but its armor bonus from natural armor increases by 4 as long as it does. It may end this state as a move action.
Slow and Steady (Ex) A tortoise's speed is never modified by armor or encumbrance.
Giant tortoises typically live on tropical islands without large predators. Despite their impressive shells, their slow speed makes them easy prey, especially for vermin and other creatures that consume their eggs. Tortoises are herbivores, and can survive for months or even years without food or water. Despite being poor swimmers, their buoyancy and long necks capable mean they can survive for significant periods at sea.
A typical giant tortoise is 3-1/2 feet tall to the top of the shell and weighs 500 pounds.
Plants and even trees grow atop the shell of this massive tortoise, which gazes about with dull, placid eyes.
Immense Tortoise CR 8
XP 4,800
N Colossal animal
Init –2; Senses low-light vision; Perception +14
Defense
AC 25, touch 0, flat-footed 25 (–2 Dex, +25 natural, –8 size)
hp 126 (11d8+77)
Fort +16, Ref +5, Will +3
Offense
Speed 20 ft.
Melee bite +15 (4d6+22/19–20)
Space 30 ft.; Reach 30 ft.
Special Attacks trample (2d8 + 22, DC 30)
Statistics
Str 40, Dex 7, Con 24, Int 2, Wis 11, Cha 9
Base Atk +8; CMB +31; CMD 39 (43 vs. trip)
Feats Critical Focus, Endurance, Great Fortitude, Improved Critical (bite), Improved Great Fortitude, Power Attack
Skills Perception +14 (+10 for sound–based checks); Racial Modifiers –4 Perception for sound–based checks
SQ buoyant, shell, slow and steady (see giant tortoise)
Ecology
Environment warm islands
Organization solitary
Treasure none
These immense, ancient tortoises never stop growing.