MC-212113Glow Lichen can generate underwater whilst not in a cave
The blog post states that glow lichen spawns in caves, but it can spawn in Ocean biomes too.
Seed: -208762005280768199
As of 21w15a - from crude observations - this seems to be happening less frequently compared to previous snapshots
Reproduce for 21w20a
Seed: 5497275710177956002 Coordinates: /tp @s 1011 51 1729
2021-01-20, 05:45 PM
2021-09-17, 06:07 PM
2021-09-15, 06:17 PM
15
9
21w03a - 1.17.1
21w03a, 21w05a, 21w05b, 21w06a, 21w07a, 21w08a, 21w08b, 21w10a, 21w11a, 21w13a, 21w14a, 21w15a, 21w20a, 1.17 Pre-release 1, 1.17 Pre-release 2, 1.17 Release Candidate 1, 1.17 Release Candidate 2, 1.17, 1.17.1 Pre-release 1, 1.17.1 Pre-release 2, 1.17.1 Pre-release 3, 1.17.1 Release Candidate 1, 1.17.1 Release Candidate 2, 1.17.1