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Rock Crab

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Rock Crab
Rock crab Rock crab (hidden)
Release date 2 November 2004 (Update)
Members? Yes
Combat 13
Hit points 50
Slayer level 1
Slayer XP 50
Aggressive Yes
Poisonous No
Immune to poison? No
Attack style Melee
Attack speed Monster attack speed 6
Max hit 3
Weakness Crush
Always drops Nothing
No one likes crabs…
Multiple rock crabs

​Rock Crabs are aggressive monsters that look like harmless rocks while disguised, but attack when walked by. Unlike most other enemies and NPCs, rock crabs are not marked with yellow dots on the player's minimap; this is probably due to the crabs' appearance, which camouflages them as rocks.

Players can tell if a rock is a rock crab by looking at the rock's shape; rock crabs are tall oval shaped while normal rocks in their area are mostly in large clusters of shattered pieces.

Rock crabs become unaggressive if the player has not left the surrounding area in a certain amount of time (roughly between ten and twenty-five minutes). To make the crabs aggressive again, exit the surrounding area (halfway to the entrance to the village in Rellekka, or by entering and exiting the entrance to Keldagrim) and enter again. As they are "dormant" until "awoken" by a passing player, rock crabs cannot be attacked until they are made aggressive once more.

They hit fairly low, but low level players should bring food. Rock crabs are excellent for training at all combat levels, due to their low Defence and high Hitpoints, which makes them easy to kill. Killing a rock crab grants 200 experience in the attack style that the player is training, as well as 66.5 Hitpoints experience.

Rellekka Rock Crabs Edit


The spot to avoid cannon fire in Relleka.

CAUTION: Dwarf multicannons are commonly used here, which makes training for other players difficult and unenjoyable; however, there is a way to avoid the cannon's fire. If a player moves to the west-most part of the multi-combat zone, most cannon fire can be avoided; there are three rock crab spawn near this location, which makes it a decent spot. Although the cannon's fire can be avoided, it is best to switch to another world.

Locations Edit



Item Quantity Rarity
Bronze pickaxe Bronze pickaxe 1 2; Common
Iron pickaxe Iron pickaxe 1 2; Common

Runes and TalismansEdit

Item Quantity Rarity
Cosmic talisman Cosmic talisman 1 4; Rare
Nature talisman Nature talisman 1 4; Rare


Item Quantity Rarity
Coins 100 Coins 4–498 2; Common
Oyster Oyster 1–2 2; Common
Seaweed Seaweed 1–5 2; Common
Oyster pearl Oyster pearl 1 2; Common
Empty oyster Empty oyster 1–3 2; Common
Spinach roll Spinach roll 1 3; Uncommon
Edible seaweed Edible seaweed 2 4; Rare
Iron ore Iron ore 1 3; Uncommon
Coal Coal 2 3; Uncommon
Copper ore Copper ore 3 3; Uncommon
Tin ore Tin ore 3 3; Uncommon
Fishing bait Fishing bait 1–10 3; Uncommon
Opal bolt tips 5 Opal bolt tips 5 3; Uncommon
Casket Casket 1 4; Rare
Clue scroll Clue scroll (easy) 1 4; Rare

Rare drop table

In addition to the drops above, this monster also has access to the rare drop table.

Show/hide rare drop table
Item Quantity Rarity
Coins 100 Coins 3,000 2; Common
Uncut sapphire Uncut sapphire 1 2; Common
Loop half of key Loop half of key 1 2; Common
Tooth half of key Tooth half of key 1 2; Common
Uncut emerald Uncut emerald 1 3; Uncommon
Uncut ruby Uncut ruby 1 3; Uncommon
Nature talisman Nature talisman 1 3; Uncommon
Chaos talisman Chaos talisman 1 3; Uncommon
Nature rune Nature rune 67 3; Uncommon
Runite bar Runite bar 1 3; Uncommon
Rune spear Rune spear 1 4; Rare
Rune battleaxe Rune battleaxe 1 4; Rare
Rune 2h sword Rune 2h sword 1 4; Rare
Uncut diamond Uncut diamond 1 4; Rare
Rune javelin Rune javelin 5 4; Rare
Silver ore Silver ore 100 (noted) 4; Rare
Adamant javelin Adamant javelin 20 4; Rare
Rune sq shield Rune sq shield 1 4; Rare
Steel arrow 5 Steel arrow 150 4; Rare
Rune arrow 5 Rune arrow 42 4; Rare
Law rune Law rune 45 4; Rare
Death rune Death rune 45 4; Rare
Dragonstone Dragonstone 1 4; Rare
Rune kiteshield Rune kiteshield 1 4; Rare
Dragon med helm Dragon med helm 1 4; Rare
Shield left half Shield left half 1 5; Very rare
Dragon spear Dragon spear 1 5; Very rare

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