Air Supplena Island

Saplena Island is an island that can be reached north of Venice in about 30 minutes by boat. It is primarily featured in Part II: Battle Tendency, and is where Joseph Joestar and Caesar Zeppeli do most of their ripple training.

Description
Saplena Island is the complete opposite of the warm and bright amtosphere of Venice, but makes up for it with the large looming towers of unique design. The entire island is owned by Lisa Lisa.

Pillar
In the middle of the island is a giant tower with a pillar inside that protrudes from a large pit. The pillar was built in AD39, in the Roman Era, before the city of Venice was established. It was created by those who were trying to revive the ripple technique, which had been largely wiped out due to the onslaught of the Pillar Men. It was mentioned by Caesar that many students of the ripple have died trying to climb the pillar.

The height of the pillar is 24 meters and its greatest circumference is 7.20 meters. It was constructed with a slippery polished stone. Oil flows from the top and drenches the entirety of the pillar. The system is set up so that the oil reaches the bottom and then is taken back up to the top, so that it constantly flows. In order to climb the oil-covered pillar, one must use a concentrated ripple in order to stick to the surface of the pillar, largely as part of a stamina test in which one must maintain the ripple for a prolonged period of time. While the pillar is not perfect and is cracked at some locations, the cracks in the pillar contain traps, one of which shoots concentrated oil out of the pillar with enough cutting power to cut through a pen perfectly.

As stated by Lisa Lisa,This test only allow climbling the pillar with Hamon and no other help.There is no exit other than climbing the pillar.The higher you go the more protruding is the pillar's shape, meaning is harder to climb.The walls surrounding the pillar are more protunding than the pillar

Pillar Test Progress

 * 25 Hours elapsed until JoJo realized how to stick to the pillar. Caesar has a progress of 15 M
 * 49 hours passed and Caesar stuck on 18 Meters and JoJo on 16 meters. The amoun of concentration needed for the test, made JoJo neither hungry or sleepy.
 * 3 hours later (52 hours since the test began) Caesar 19m and Jojo 18. JoJo discovers the first trap: Oil blasting at high pressure.
 * 9 hours later (61 hours since the test began) Caesar Reach the top.
 * 9 minutes later JoJo uses the High Pressure Oil steam to Jump to the wall almost and reach the top with Caesar's Help.

Trivia

 * Curious enough, the training to beat a "Pillar Man" is to climb a "Pillar".