Rock lobster

Rock Lobsters are found in the Waterbirth Island dungeon. They have very high defence (though are weak to magic attacks), and can hit up to 15. They also attack quickly, making them more dangerous. Their attack speed is faster than a whip.

Method
A popular method to killing rock lobsters is to use the ancient magic spell, Ice Burst. You run through the tunnel getting 9 to attack you (protect from melee is recommended) and run back, next to the ladder is a safespot. Simply stand here and Ice Burst them to death. You can get up to 120-150 crimson charms per hour. It will also reward the player with a hefty chunk of magic experience, gaining 100k an hour, more for higher magic levels.

What to take
Runes

If you are ice bursting, it is often helpful to take blood runes with you as well. This allows you to heal yourself by using Blood Burst on the Rock Lobsters to maintain your health. It is advised to bring at least 50 blood runes for every 2000 death runes. Obtaining the runes is slightly harder. Death runes can be bought from the Grand Exchange or shops for a huge cost. Crafted using runecrafting at level 65, or gained as drops from monsters like brine rats where you can obtain around 150 death runes per 120 kills. Buying Chaos runes and water runes off the Grand Exchange is recommended.

Weapons and Armour

Bring the best magic attack bonus armour you can find (see magic). If you do not have huge amounts of money subsitutes can be made, such as a plain spirit shield which gives no negative magic attack bonus. As for weapons a ancient staff is helpul for autocasting the spells. Now with the update of the stealing creation rewards, a Sacred clay staff which has only got a +10 magic bonus and not a +15 of the ancient staff, but it grants double experience for a short time. It is needed, therefore to take both staffs for extended stays. When you are attracting the rock lobsters and using prayer it is very useful to have armour that increases your prayer bonus such as Proselyte armour.

Other

You will not need much food, a couple of sharks will sufice as you will only need food when running to reach the rock lobsters, as you can use blood burst once you are there. Bring a teletab for a quick escape if you suddenly run out of prayer. Of course you will also need rune throwing axes to gain access to the deeper dungeon. With the rest of your inventory fill it with prayer potions (4).

Drops
Runes


 * Earth runes
 * Water runes
 * Pure essence

Talismans
 * Fire Talisman
 * Air talisman

Charms - in order of how common.


 * 2 Crimson charms
 * 2 Gold charms
 * 2 Green charms
 * 2 Blue charms

Other


 * 4 Seaweed
 * 4 Edible seaweed
 * Random amount of Steel arrows
 * Random amount of Iron arrows
 * Raw lobster
 * Uncut gems
 * Grimy Herbs (Ranarr, kwuarm, Cadantine)
 * Tinderbox
 * Level 2 Clue scroll
 * Half of a key
 * Random Seeds - onion, potato, watermelon

Trivia

 * The examine is a reference to the B-52's song "Rock Lobster".
 * Rock Lobsters are one of the fastest way to obtain crimson charms.