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The Giant Sea Snake is encountered at the end of the Royal Trouble quest. It is not as strong as its combat level suggests, but an antipoison potion, preferably super, is vital, as the snake is poisonous with damage starting in the nineties. It fights with melee up close and ranged from a distance, but it cannot detect the use of prayers. Like its offspring, it is vulnerable to slashing weapons.

The best way to defeat the snake is to attack it up close with melee, using a slashing weapon such as a Scimitar or an Abyssal whip to exploit its weakness. This way, it will not use its ranged attack, so players can freely use Protect from Melee to reduce the majority of the damage. Other factors such as what food to bring and what armour and weapon to use are left to the player's decision. It is recommended to bring at least lobsters or swordfish.

Drops[]

100% drops[]

Item Quantity Rarity GE price
Big bonesBig bones1Always203

Main drops[]

Item Quantity Rarity GE price
Watermelon seedWatermelon seed1Unknown3,590
Poison ivy seedPoison ivy seed1Unknown302
Guam seedGuam seed1Unknown176
Marrentill seedMarrentill seed1Unknown179
Tarromin seedTarromin seed1Unknown137
Harralander seedHarralander seed1Unknown196
Toadflax seedToadflax seed1Unknown9,872
Ranarr seedRanarr seed1Unknown976
Irit seedIrit seed1Unknown1,018
Avantoe seedAvantoe seed1Unknown375
Kwuarm seedKwuarm seed1Unknown12,857
Snapdragon seedSnapdragon seed1Unknown293
Cadantine seedCadantine seed1Unknown1,438
Lantadyme seedLantadyme seed1Unknown726
Dwarf weed seedDwarf weed seed1Unknown822
Torstol seedTorstol seed1Very rare540
Adamant dart tipAdamant dart tip2Unknown444
Pearl bolt tipsPearl bolt tips3Unknown126
Broad arrowBroad arrow4UnknownNot sold
Water orbWater orb1Unknown5,942
Water runeWater rune15Unknown375
Mist runeMist rune1Unknown1,163
Fishing baitFishing bait50Unknown250
Raw bassRaw bass2Unknown2,028
Raw lobsterRaw lobster1Rare353
CasketCasket1Unknown572
Heavy boxHeavy box1Always[1]Not sold
Coins 25Coins23; 32; 44Unknown23–44
  1. ^ Dropped during Royal Trouble.

Tertiary drops[]

Item Quantity Rarity GE price
Sealed clue scroll (medium)Sealed clue scroll (medium)1UnknownNot sold
Long boneLong bone1UnknownNot sold
Giant snake spineGiant snake spine1Common[1]Not sold
  1. ^ Dropped during Fur 'n' Seek wish list.

Universal drops[]

Universal drops are dropped by nearly every monster outside of Daemonheim.
These drops are dropped alongside main drops.
Item Quantity Rarity GE price
Key tokenKey token1RareNot sold
Mimic kill tokenMimic kill token1Very rare5,575
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