Temple of Poseidon - Small Room with Round Burners

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After placing the FIRST TRIDENT atop the statue of Poseidon, as described in the main walkthrough, exit the statue room and carefully enter the room on the left.

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Each black circle on the floor is a burner, which will ignite if Lara gets too close. So either jump over them or walk between those tiles at the corners to avoid injury.

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At the back of the room is a cluster of jars. When Lara stands near them, 2 skeletons rise from the floor behind her. Roll...

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...and use a grenade or two to take care of them. This should break the jars in the process.

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Pick up normal arrows, plus wideshot and regular shotgun ammo.

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Exit carefully, jumping over or avoiding the burners.

[Temple of Poseidon Walkthrough]