This is a crater lake which is quite acid (pH 0.5-1.3!) from sulfur dissolved in the water. The water has a striking bluish to greenish color and there is a strong sulfur smell all around. Wikipedia
![](https://pro2-bar-s3-cdn-cf6.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/0272e536-74a2-423d-96b0-4e65bbfa314b_rw_1200.jpg?h=733d5f3dfe59edbf77301e69579fda98)
![](https://pro2-bar-s3-cdn-cf1.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/2d3dd547-a907-466f-9c23-c16df134f40f_rw_1200.jpg?h=334eeaded6a2fae06dff17b7fb4d43e6)
Fumaroles and bleached rocks
![](https://pro2-bar-s3-cdn-cf3.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/46d064d0-bb8d-4db1-bc69-5b0c5c9bc50b_rw_1200.jpg?h=cb47a6f8e4cad2566b7e9fa069df2854)
![](https://pro2-bar-s3-cdn-cf4.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/f269e1ad-4f22-4a26-a116-b48fe7e96822_rw_1200.jpg?h=2498a78e06fee8c112533c4c0608fdce)
![](https://pro2-bar-s3-cdn-cf3.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/e33a2f98-6577-4a61-908e-76deca9d2310_rw_1200.jpg?h=2b0f77421f2e495547260d0057022fc7)
![](https://pro2-bar-s3-cdn-cf3.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/eadd8672-5382-4ae2-94e7-1b3afa6be256_rw_1200.jpg?h=f3d0857fb29535548b17f03739be9d1e)
Milky colored water
![](https://pro2-bar-s3-cdn-cf3.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/e912fd07-25bc-4d56-b7c6-5fcb1b197aa6_rw_1200.jpg?h=5a6aae73aba59efb81d052af457df79a)
![](https://pro2-bar-s3-cdn-cf4.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/5eaeaed2-f130-47ed-b653-c2c65641ef87_rw_1200.jpg?h=8b128756991781b4e4ab4a089fa4ec2f)
![](https://pro2-bar-s3-cdn-cf.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/b997841c-5351-472d-96da-3699b085d613_rw_1200.jpg?h=d4e4c07159f800009ff54e635d125288)
![](https://pro2-bar-s3-cdn-cf4.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/5319cb7f-ff53-486a-8216-d5650708fc38_rw_1200.jpg?h=166f91454c4deec2d857434fbc782ee8)
![](https://pro2-bar-s3-cdn-cf.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/113f4b1e-a282-459e-99ec-75eb0dee0089_rw_1200.jpg?h=a3e31014eead85642ddfa36d1e1b2d94)
A little girl dipping her hand in the water
![](https://pro2-bar-s3-cdn-cf2.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/34cace52-16be-45b5-8638-68e453cb5867_rw_1200.jpg?h=90a5ec1155e7dbf2d2cde85bb3738b94)
![](https://pro2-bar-s3-cdn-cf4.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/fe4de2e5-312b-45b5-8a80-b5b6d1f87b76_rw_1200.jpg?h=cdd2d01eefcd3505b71b788d88092cb6)
![](https://pro2-bar-s3-cdn-cf6.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/a61b93cd-c82a-4cc0-b90b-36911f4ded8b_rw_1200.jpg?h=aa49a4d94f78d9350645e69691f7fc70)
![](https://pro2-bar-s3-cdn-cf.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/bf102885-2e0a-46de-b91f-36204382e9d4_rw_1200.jpg?h=5a8db9beae9bdd3575c02ef21046900b)
Although inactive, there must have been some changes since those trees died.
![](https://pro2-bar-s3-cdn-cf3.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/46f5bc1b-87f9-4527-b22d-d25b97fb0921_rw_1200.jpg?h=bbfb161d61340750129cc5a330042f89)
![](https://pro2-bar-s3-cdn-cf1.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/95477390-210a-4cac-8953-ebd1726f4d20_rw_1200.jpg?h=542fe23e098ca5a2d1ceba7f56a68001)
Popular place for young couples to date...
![](https://pro2-bar-s3-cdn-cf1.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/928c39e5-4a8b-4196-8d09-4287c6416f5e_rw_1200.jpg?h=7cbf0a647f26c8efd616adb780f6c079)
... and kids to play!
![](https://pro2-bar-s3-cdn-cf6.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/78a7807f-9682-4bf8-b97f-e4e54e1300ff_rw_1200.jpg?h=1f51d7628dcd6d3ea830658347115263)
![](https://pro2-bar-s3-cdn-cf4.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/f75e140e-2a7b-4717-966c-2083098a893f_rw_1200.jpg?h=c77c32e738778cf6c74246aa72b5a2cd)
![](https://pro2-bar-s3-cdn-cf5.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/64f0aa66-681e-46cf-b367-69d652018fd5_rw_1200.jpg?h=59af6409ae11a6b447537d8bcdced350)
The external side of the crater is the site of luxuriant forest !
![](https://pro2-bar-s3-cdn-cf3.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/4e7ce033-bae6-413f-8c5a-23b78dcc7088_rw_1200.jpg?h=d6f4cef916085e9cb4c4142d90d910ea)
![](https://pro2-bar-s3-cdn-cf2.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/3a02143c-7f37-4fca-89c1-b72b0c51ea5a_rw_1200.jpg?h=52d17238f56d0d9f30e46646f85ef00b)
![](https://pro2-bar-s3-cdn-cf6.myportfolio.com/c3db43b622526832dc2359d8b6bb24aa/0fb94035-c6ae-4d0e-8c68-7cdcf26e6903_rw_1200.jpg?h=cc7852af9827ab3a7cf73c37e89ed80f)