Round trip in August

Hi,
we will travel to Japan in August. We've already booked the rooms, our planned program would be:
Aug 21 arrival to Narita Airport early in the morning
Aug 21-23 Koya San (2 nights)
Aug 23-26 Kyoto (3 n)
Aug 26-29 Fuji/Kawaguchi-ko (3 n)
Aug 29 - Sept 2 Tokyo (4 n)
Sept 2 departure from Narita Airport

Do you find it a feasible program?
I would like to get your advice which train pass(es) should we buy? Is it worth to choose the 14d JR Pass even it is not valid in Fuji area? Or?

We would like to climb Mt. Fuji from Kawaguchi-ko 5th Station as well.

Thank you in advance!

Are you going straight to Koya San from Narita airport? Do you realise that it will take over 6 hours by train with numerous train transfers?

You can look up train times and schedules here:
http://www.japanrail.com/JR_hyperdia.html

Thanks, I've already checked this web site (hyperdia).
I think we can manage it.

HYPERDIA seems to reject station names with hyphen....
"Shin-Osaka" was rejected, "ShinOsaka" was accepted.

: Is it worth to choose the 14d JR Pass even it is not valid in Fuji area?

No. JR regular railroad cost is estimated at about 38,000 yen per adult,
on the supposition that you utilize only non-Shinkansen trains between Nagoya and Otsuki
when you visit Kawaguchiko and Mt. Fuji.
Using a 7-day JR Pass, you may make the JR cost lower by 3,620 yen.
- JR regular railroad cost: 37,890 yen per adult;
- - A 7-day JR Pass (Aug. 21 - 27): 28,300 yen per adult,
- - JR regular railroad cost (the rest): 5,970 yen per adult.
- Other railroad cost: 5,220 yen per adult.

JR Pass for ordinary-class seats
(for JR trains, JR local bus lines, some JR highway bus services, JR Miyajima Ferry)
- A 14-day Pass: 45,100 yen per adult.
- A 7-day Pass : 28,300 yen per adult.
A JR Pass can cover all JR trains except those of Shinkansen Nozomi service.
To get a JR Pass, your legal status "Temporary Visitor" is a must.
http://www.japanrailpass.net/eng/en001.html

: Do you find it a feasible program?

Your draft doesn't look a hectic one, but it seems a little hard to me....
I think you'd better limit the number of the sites you visit in Kyoto and in Tokyo, and consult your stamina all the way.
- Mount Fuji
http://www.japan-guide.com/e/e2172.html
- Climbing Mount Fuji
http://www.japan-guide.com/e/e6901.html
Fuji from Kawaguchiko.
- Mount Fuji hiking
http://www.fujisan.ne.jp/nature/fujitozan_e.php
- Access Guide
http://www.fujisan.ne.jp/access/index_e.php

--Aug. 21--
yen per adult: Section: Details
9,350: Narita Airport / Airport Terminal 2 to Osaka shinai [Inside-city] #1: Fare
1,860: Narita Airport / Airport Terminal 2 to Shinagawa 品川 :
Ltd. Exp. Narita Express [N'EX] (requiring reservation; non-smoking cars only)
5,440: Shinagawa to Shin-Osaka 新大阪 :
Shinkansen Hikari / Kodama (reserved seat)
270: Shin-Osaka (M13) to Namba なんば (M20) #1:
Fare (Osaka Municipal Subway: Midosuji Line 御堂筋線)
http://www.kotsu.city.osaka.jp/foreign/english/subway/i...
850: Namba to Gokurakubashi #1: Fare (Nankai: Koya Line)
380: Gokurakubashi to Koyasan: Fare (Nankai: Cable Car)
http://www.nankai.co.jp/global/routemap/kouya.html
#1: Routes without subway:
Shin-Osaka (JR) Osaka (JR) Shin-Imamiya 新今宮 (walk) Shin-Imamiya (Nankai) Gokurakubashi
--Aug. 23--
yen per adult: Section: Details
380: Koyasan to Gokurakubashi: Fare (Nankai: Cable Car)
850: Gokurakubashi to Namba: Fare (Nankai: Koya Line)
270: Namba (M20) to Shin-Osaka (M13):
Fare (Osaka Municipal Subway: Midosuji Line)
540: Shin-Osaka to Kyoto 京都 : Fare (JR: Special Rapid 新快速)
--Aug. 26--
Purchase the JR tickets together at once.
yen per adult: Section: Details
7,140: Kyoto shinai [Inside-city] to Otsuki 大月
via Nagoya 名古屋 , Shiojiri 塩尻 , not via Matsumoto: Fare
3,120: Kyoto to Nagoya:
Shinkansen Hikari / Kodama (reserved seat)
1,400: Nagoya to Shiojiri: Ltd. Exp. Shinano しなの
(reserved seat; non-smoking cars only; at combination discount)
1,860 : Shiojiri to Kofu 甲府 : Ltd. Exp. Azusa / Super Azusa
(reserved seat; non-smoking cars only)
1,210: Kofu to Otsuki: Ltd. Exp. Kaiji かいじ
(reserved seat; non-smoking cars only)
1,110: Otsuki to Kawaguchiko: Fare (Fujikyu: Fujikyuko Line)
--Aug. 29--
1,110: Kawaguchiko to Otsuki: Fare (Fujikyu: Fujikyuko Line)
1,450: Otsuki to Station X #2: Fare at max. (JR)
1,610: Otsuki to Shinjuku 新宿 : Ltd. Exp. Azusa / Super Azusa / Kaiji
(reserved seat; non-smoking cars only)
: Shinjuku to Station X: (JR: Yamanote Line or on Chuo Line)
#2: A station on Yamanote Line or on Chuo Line's Shinjuku - Tokyo portion.
--Sep. 2--
1,450: Station X to Airport Terminal 2 / Narita Airport: Fare at max.
: Station X to Tokyo 東京 : (JR: Yamanote Line or Chuo Line)
1,460: Tokyo to Airport Terminal 2 / Narita Airport:
Ltd. Exp. Narita Express [N'EX] (requiring reservation; non-smoking cars only)

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Thanks a lot for your kind reply, I really appreciate it.