No the heat was tolerable but volcanic eruptions are not a photo equipment friendly environment. Lots of corrosive fume and salt spray.
I usually keep my equipment bagged until I am ready to use it and try to stay out of areas where the fume is bad.
Wow, this looks hot!
Like Cheyenne, also I like the inclusion of the other photographers, adds a nice element to an otherwise also nice photo - and yes, this is something we do not normally get to see, which adds to the fact that this is an interesting photo.
Do these lave flows make a sound?
Can you describe it?
Funny you should ask. There are two types of lava. A'a and pahoehoe. The lava in the photo is just altering its from from pahoehoe to A'a. Pahoehoe lava is silent but for an occasional hiss, crackle or pop. A'a lava sounds like someone breaking up an entire shop of fine china.