Hello! Some questions about trip to Zermatt

Hello ! I'm planning to go to Zermatt next week, but I have encountered several problems about
the ticket prices and the rail pass, could someone kindly answer them for me ? Thanks !
Below are the questions :
1. How much reduction do I get if I use an "Eurail" pass to go from Zermatt to Schwarzsee
then to Zermatt glacier paradise ? Or they simply give away 25% reduction for all routes in Zermatt to eurail pass holders ?
Do they have a route reduction map like this one from jungfraujoch (click "reduction" on right above) ? (http://www.jungfrau.ch/en/tourism/travel-information/tickets-fares/)

2. I know there is a price list for all my trips above in the website as here : http://www.zermatt.ch/en/page.cf/p_rates_matterhorn_glacier_paradise
but I'm a little confused, don't know all the price indicate single trip only or return included, and assume if that's only single trip,
the total cost for my trip would be 32(zermatt->schwarzsee) + 42(schwarzsee->paradise) then double for return, in total of 148, is that correct ? (without considering the railpass reduction)
Or I just simply choose the ticket 64(zermatt->paradise) ? But I also want to get down at schwarzsee to walk around, is it possible I get down with this ticket ?

3. Does anyone happen to know the train price to go from Disentis to Zermatt (just regio not Glacier) ? I searched
the entire website of Gotthard bahn but only to find booking , and it doesn't tell you the price after the booking either ... I figured maybe SBB has what I look for so I check the time table but amazing things happened ... the price for regio and glacier is the same (84 CHF) , except for the reservation fee ... is this true or something went wrong with my searching? Or the reservation fee already reflects the higher costs for glacier express?

Thank you to whoever answer my questions, cheers ! ;-)
Howard

Thank you so much !! This is definitely a great help !! :D
And one more quick question ! I checked the eurail coverage map, and I found one of my trip legs from Visp to Bern would go through a tunnel which is
indicated in red dotted line (Visp -> Spiez) , but the train type is IC, does that mean it's actually covered by Eurail? And how much discount do I get
if that's not covered by Eurail? 25% again ??

Thanks again ! Cheers !
Howard

Hi Howard,

Your Eurail pass includes free traveling through that tunnel as well, regardless of the train type.