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Silver Trench

Amount of Floors - 99
Unlock Criterea - After clearing both Stormy Sea and Pitfall Valley, befriend Zapdos, Moltres and Articuno. Talk to Alakazam at Pokemon Square, then visit the legendary birds' Friend Area Legendary Island, they will generate the Whirl Symbol to grant you access
Notes - Entry requires HM Dive and a water pokemon

Pic
No. Name Floors Found on
#278 Wingull 1-5
#090 Shellder 1-8
#072 Tentacool 1-9
#138 Omanyte 1-9
#211 Qwilfish 1-9
#140 Kabuto 5-13
#222 Corsola 5-13
#079 Slowpoke 6-14
#086 Seel 6-14
#363 Spheal 10-19
#116 Horsea 10-20
#347 Anorith 14-23
#098 Krabby 15-24
#120 Staryu 15-25
#088 Grimer 20-29
#139 Omastar 20-29
#141 Kabutops 24-34
#364 Sealeo 25-33
#099 Kingler 26-35
#080 Slowbro 30-36
#123 Seadea 30-39
#318 Carvanha 30-39
#073 Tentacruel 35-44
#121 Starmie 35-44
#168 Armaldo 35-44
#320 Wailmer 41-50
#370 Luvdisc 45-54
#147 Dratini 50-59
#223 Remoraid 50-59
#199 Slowking 50-59
#087 Dewgong 55-64
#224 Octillery 60-69
#134 Vaporeon 20, 30, 40, 50, 60, 70, 80
#089 Muk 60-69
#319 Sharpedo 60-69
#365 Walrein 60-69
#366 Clamperl 65-79
#170 Chinchou 70-79
#230 Kingdra 70-79
#368 Gorebyss 71-79
#345 Lileep 80-89
#369 Relicanth 80-89
#091 Cloyster 80-89
#346 Cradily 90-98
#171 Lanturn 90-98
#367 Huntail 90-98
#249 Lugia 99 (Boss)

 
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